EXCELLENT TAILOR
   Benefit: After each extended rest, you pick one ally who gets a +2 bonus to all Diplomacy checks until the next extended rest.
   You can also sell clothes for the full price instead of 20%. This includes all items made from cloth - capes, cloaks, hats, gloves not mentioned as made of leather or metal, cloth armour, banners.
 

WAR CHEF
   Benefit: You gain a +2 bonus to all skills checks for foraging, as well as:
   - Diplomacy checks when the target recieves food you have prepared.
   - Perception checks for sensing smells.

PARAGON TIER FEAT

PARAGON LEAP
   Prerequisite: Training in Acrobatics, training in Athletics
   Benefit: When making a double move jump you can make an Acrobatics check as well. You divide the Acrobatics check  by 10 (or 5 if using a running start) and add the result to your two Athletics checks.
 
 

REMOVED FEATS

The following heroic feats from PHB, PHB2, Martial Power, Martial Power 2, Arcane Power, Divine Power, and Primal Power don't exist in the Known World and can't be taken by characters:
- Arcane Fury (no half-orcs)
- Armour of Bahamut (no Bahamut)
- Astral Enmity (no devas)
- Auspicious Lineage (no devas)
- Avandra's Rescue (no Avandra)
- Blessed Scoundrel (no halflings)
- Blessed Shifter (no shifters)
- Blessing of Avandra (no halflings)
- Blessing of Corellon (no elves)
- Blurring Claws (no razorclaw shifters)
- Bracing Breath (no dragonborn)
- Breath of Life (no dragonborn)
- Breath-Resistant Beast (no dragonborn)
- Brilliant Darkfire (no drow)
- Brutal Accuracy (no elves)
- Changeling's Mark (no changelings)
- Clarity of Spirit (no kalashtar)
- Closing Advantage (no swordmages)
- Combat Casting (no swordmages)
- Command the Darkness (no drow)
- Corellon's Grace (no Corellon)
- Cunning Ambusher (no tieflings)
- Darkfire Implement (no drow)
- Darkfire Strike (no drow)
- Darkfire Targeting (no drow)
- Darkfire VItality (no drow)
- Deep Sage (no Underdark)
- Divine Assault (no half-orcs)
- Draconic Challenge (no dragonborn)
- Draconic Spellcaster (no dragonborn)
- Dragonborn Channeling (no dragonborn)
- Dragonclaw Mark (no dragonborn)
- Drow Beast Mastery (no drow)
- Druid of Darkness (no drow)
- Dwarf Stoneblood (no dwarves)
- Dwarf Trapsmith (no dwarves)
- Dwarven Weapon Training (no dwarves)
- Eladrin Soldier (no eladrin)
- Eladrin Swordmage Advance (no eladrin)
- Elemental Barbarian (no genasi)
- Elemental Blade Attunement (no genasi)
- Elemental Blessing (no genasi)
- Elemental Challenge (no genasi)
- Elemental Echo (no genasi)
- Elemental Empowerment (no genasi)
- Elemental Rebuke (no genasi)
- Elven Arcane Precision (no elves)
- Elven Beast Mastery (no elves)
- Elven Precision (no elves)
- Enlarged Dragon Breath (no dragonborn)
- Evade and Strike (no halflings)
- Eyes of the Spirit (no elves)
- Ferocious Rebuke (no tieflings)
- Fanged Magic (no shifters)
- Fearsome Wrath (no half-orcs)
- Feral Fey Step (no eladrin)
- Feyborn Charm (no eladrin or gnomes)
- Fey Command (no eladrin)
- Fey Fate (no elves)
- Fey Preserver (no eladrin)
- Fey Trickster (no gnomes)
- Feyborn Companion (no eladrin)
- Feyborn Pursuer (no eladrin)
- Fickle Servant (no changelings or doppelgangers)
- Fiendish Companion (no tieflings)
- Gnome Phantasmist (no gnomes)
- Goliath Greatweapon Prowess (no goliaths)
- Gorebrute Charge (no longtooth shifters)
- Grasping Ensnarement (no swordmages)
- Group Assault (no half-elves)
- Group Insight (no half-elves)
- Group Quarry (no half-elves)
- Group Rattling (no half-elves)
- Group Stealth (no gnomes)
- Halfling Agility (no halflings)
- Halfling Stalwart (no halflings)
- Harmony of Erathis (no Erathis)
- Healing Step (no eladrin)
- Hellfire Blood (no tieflings)
- Hidden Channeling (no gnomes)
- Holy Resolve (no warforged)
- Hunter of Wind and Wave (no genasi)
- Immortal Warding (no devas)
- Improved Swordmage Warding (no swordmages)
- Infernal Blessing (no tiefling)
- Infernal Clamour (no tieflings)
- Infernal Malediction (no tieflings)
- Infernal Might (no tieflings)
- Infuriating Escape (no halflings)
- Ioun's Poise (no Ioun)
- Keeper of Storm (no genasi)
- Kord's Favour (no Kord)
- Kord's Resilience (no goliaths, no Kord)
- Lingering Wrath (no tiefling)
- Linguist
- Longtooth Fury (no shifters)
- Longtooth Spirit Shifter (no shifters)
- Lost in the Crowd (no halflings)
- Lucky Skirmisher (no halflings)
- Magic of the Ages (no devas)
- Magic of the Mists (no gnomes)
- Manifest Healing (no genasi)
- Mark of the Infernal (no tieflings)
- Markings of the Blessed (no goliaths)
- Markings of the Elements (no goliaths)
- Markings of the Victor (no goliaths)
- Martial Dilettante (no half-elves)
- Master of Rumbling Earth (no genasi)
- Melora's Tide (no Melora)
- Memory of a Thousand Battles (no devas)
- Moradin's Resolve (no Moradin)
- Mountain Hammer Spellcasting (no goliaths)
- Nimble Companion (no halflings)
- Nimble Dodge (no halflings)
- Nimble Spellcaster (no halflings)
- Opportunistic Accuracy (no elves)
- Pelor's Radiance (no Pelor)
- Potent Rebirth (no devas)
- Predatory Magic (no shifters)
- Primal Breath (no dragonborn)
- Primal Halfling Counterattack (no halflings)
- Primal Resilience (no half-orcs)
- Psychic Retaliation (no kalashtar)
- Radiant Power (no devas)
- Rattling Wrath (no tieflings)
- Raven Queen's Blessing (no Raven Queen)
- Razorclaw Mark (no shifters)
- Razorclaw Spirit Shifter (no shifters)
- Religious Dabbler (no half-elves)
- Remembered Wizardry (no devas)
- Risky Aegis (no swordmages)
- Rites of Spirit's Blood (no tieflings)
- Rumbling Earthshock (no genasi)
- Savage Assault (no half-orcs)
- Sehanine's Reversal (no Sehanine)
- Shadow Skulk (no gnomes)
- Sneaky Accuracy (no elves)
- Spider's Swiftness (no drow)
- Spirit's Fey Step (no eladrin)
- Spirits of the Primal Dragons (no dragonborn)
- Taunting Visage (no changelings or doppelgangers)
- Telepathic Mark (no kalashtar)
- Thirst for Battle (no half-orcs)
- Thundertusk Companion (no dwarves)
- Trickster's Mark (no gnomes)
- Triggered Chaos (no halflings)
- True Dragon Soul (no dragonborn)
- Twist the Arcane Fabric (no eladrin)
- Unbalancing Wrath (no tieflings)
- Unleash the Beast (no shifters)
- Warforged Example (no warforged)
- Warforged Faith (no warforged)
- Wielder of Piercing Flame (no genasi)
- Wild Senses (no shifters)
- Wrathful Magic (no tiefling)
- Vicious Darkfire (no drow)
 

The following paragon feats from PHB, PHB2, Arcane Power, and Martial Power don't exist in the Known World and can't be taken by characters:
(All paragon feats from Divine Power and Primal Power are allowed.)
- Ascendant Lineage (no devas)
- Astral Reneval (no devas)
- Avandra's Gift (no Avandra)
- Beasthide Shifting (no shifters)
- Cliffwalk Shifting (no shifters)
- Combat Opening (no half-elves)
- Darkhunter (no drow)
- Darkjumper (no drow)
- Dragonbreath Warrior (no dragonborn)
- Dwarven Durability (no dwarves)
- Elemental Companions (no genasi)
- Elemental Guardian (no genasi)
- Empowered Dragon Breath (no dragonborn)
- Ensnaring Flourish (no swordmages)
- Fade Ally (no gnomes)
- Fey Charge (no eladrin)
- Fey Gambit (no eladrin)
- Fey Tactics (no eladrin)
- Feywild Protection (no eladrin)
- Fiendish Defender (no tieflings)
- Fiery Rebuke (no tieflings)
- Greater Aegis of Shielding (no swordmages)
- Greater Swordmage Warding (no swordmages)
- Halfling Beast Mastery (no halflings)
- Infernal Sneak Attack (no tieflings)
- Opportunistic Archer (no elves)
- Surprising Disappearance (no gnomes)
- Unrelenting Assault (no half-orcs)
- Versatile Master (no half-elves)
- Vigorous Assault (no swordmages)
- Wrathful Hunter (no tieflings)
 

All epic feats from the PHB, Divine Power, and Primal Power are available.
The following epic feats from  PHB2, Arcane Power, and Martial Power don't exist in the Known World and can't be taken by characters:
- Ancient Stone (no goliaths)
- Binding Ensnarement (no swordmages)
- Burst of Savagery (no shifters)
- Charging Aegis (no swordmages)
- Darkfire Warrior (no drow)
- Dragon Warrior (no dragonborn)
- Elemental Warrior (no genasi)
- Extended Aegis (no swordmages)
- Feywild Warrior (no eladrin)
- Fortune's Warrior (no halflings)
- Hawkeye Warrior (no elves)
- Infernal Warrior (no tieflings)
- Shared Warding (no swordmages)
- Stoneheart Warrior (no dwarves)
- Tactical Insight (no half-elves)
- Transcendent Lineage (no devas)
- Vanishing Act (no gnomes)
 
 

CHANGED FEATS
The following heroic feats exist in altered form:
 

HEROIC FEAT	CHANGE
Anger Unleashed	Prerequisite: Half-orc to Prerequisite: Martial or Primal power source
Ankle Cutter	Prerequisite: Halfling to Prerequisite: Dex 17 and training in Acrobatics
Armour Proficiency     (Plate)	Additional prerequisite: acquiring a suit of plate armour
Astral Preservation	Prerequisite: Deva removed In addition, this feat is now a paragon feat
Bloodied Invigoration	Prerequisite: Con 13 to Prerequisite: Con 15 Prerequisite: Dragonborn removed.
Bold Command	Prerequisite: Halfling to Prerequisite: Cha 15
Bolstering Inspiration	Prerequisite: Dwarf to Prerequisite: Cha 15
Bravura Spirit	Prerequisite: Dragonborn to Prerequisite: Cha 15
Brutal Teamwork	Prerequisite: Dragonborn to Prerequisite: Con 13
Curse of Io's Blood	Prerequisite: Dragonborn removed In addition, this feat is now a paragon feat
Cursed Advantage	Prerequisite: Drow removed In addition, this feat is now a paragon feat
Devoted Challenge	Prerequisite: Dwarf to Prerequisite: Cha 13
Dodge Giants	Prerequisite: Dwarf to Prerequisite: Dex 13
Dragonborn Frenzy	Prerequisite: Dragonborn to Prerequisite: Con 13
Dragonborn Senses	Prerequisite: Dragonborn to Prerequisite: training in Perception In addition, this feat is now a paragon feat
Dwarf Battle Priest	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Eladrin Sword Wizardry	Prerequisite: Eladrin removed In addition, this feat is now a paragon feat
Fey Blades	Prerequisite: Eladrin to Prerequisite: Dex 17
Feyborn Fortune	Prerequisite: Gnome removed In addition, this feat is now a paragon feat
Furious Devotion	Prerequisite: Half-orc removed In addition, this feat is now a paragon feat
Half-Elf Spirit Speaker	Prerequisite: Half-elf removed In addition, this feat is now a paragon feat
Holy Savagery	Prerequisite: Shifter removed In addition, this feat is now a paragon feat
Holy Speech	Prerequisite: Fluent in Supernal changed to Prerequisite: Any divine class
Inspired Tactics	Prerequisite: Half-elf to Prerequisite: Cha 15
Invoke Teamwork	Prerequisite: Half-elf removed In addition, this feat is now a paragon feat
Leading Fire	Prerequisite: Elf to Prerequisite: Int 13
Light Step	Prerequisite: Elf to Prerequisite: training in Survival
Longsword Finesse	Prerequisite: Eladrin to Prerequisite: Str 13
Majestic Presence	Prerequisite: Deva changed to Prerequisite: Any divine class In addition, this feat is now a paragon feat
Markings of the Predator	Prerequisite: Goliath removed In addition, this feat is now a paragon feat
Preserver's Call	Prerequisite: Kalashtar removed In addition, this feat is now a paragon feat
Rune-Scribed Soul	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Sorcerous Assassin	Prerequisite: Drow removed In addition, this feat is now a paragon feat
Spirits of Stealth	Prerequisite: Gnome removed In addition, this feat is now a paragon feat
Spirits of Stone	Prerequisite: Dwarf to Prerequisite: Con 15
Stone Step Spirits	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Strength of Stone	Prerequisite: Goliath removed In addition, this feat is now a paragon feat
Tactical Inspiration	Prerequisite: Eladrin to Prerequisite: Cha 15
Tunnel Stalker	Prerequisite: Dwarf removed
Vengeful Curse	Prerequisite: Tiefling removed In addition, this feat is now a paragon feat
Wrath of Ages Past	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Wrath of the Mountain King	Prerequisite: Goliath removed In addition, this feat is now a paragon feat

The following paragon feats exist in altered form:
 

PARAGON FEAT	CHANGE
Astral Preservation	Prerequisite: Deva removed In addition, this feat is now a paragon feat
Bloody Inspiration	Prerequisite: Dragonborn to Prerequisite: Cha 15
Curse of Io's Blood	Prerequisite: Dragonborn removed In addition, this feat is now a paragon feat
Cursed Advantage	Prerequisite: Drow removed In addition, this feat is now a paragon feat
Draconic Arrogance	Prerequisite: Dragonborn to Prerequisite: Cha 15
Dragonborn Senses	Prerequisite: Dragonborn to Prerequisite: training in Perception In addition, this feat is now a paragon feat
Dwarf Battle Priest	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Eladrin Sword Wizardry	Prerequisite: Eladrin removed In addition, this feat is now a paragon feat
Enduring Wallop	Prerequisite: Dwarf to Prerequisite: Con 15
Feyborn Fortune	Prerequisite: Gnome removed In addition, this feat is now a paragon feat
Furious Devotion	Prerequisite: Half-orc removed In addition, this feat is now a paragon feat
Group Defence	Prerequisite: Half-elf removed In addition, this feat is now a paragon feat
Group Flanking	Prerequisite: Half-elf to Prerequisite: Int 15
Half-Elf Spirit Speaker	Prerequisite: Half-elf removed In addition, this feat is now a paragon feat
Holy Savagery	Prerequisite: Shifter removed In addition, this feat is now a paragon feat
Hunter's Advantage	Prerequisite: Elf to Prerequisite: Wis 15
Invoke Teamwork	Prerequisite: Half-elf removed In addition, this feat is now a paragon feat
Majestic Presence	Prerequisite: Deva changed to Prerequisite: Any divine class In addition, this feat is now a paragon feat
Markings of the Predator	Prerequisite: Goliath removed In addition, this feat is now a paragon feat
Preserver's Call	Prerequisite: Kalashtar removed In addition, this feat is now a paragon feat
Preserving Concealment	Prerequisite: Gnome removed In addition, this feat is now a paragon feat
Prime Slayer	Prerequisite: Elf to Prerequisite: Cha 15
Rune-Scribed Soul	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Running Shot	Prerequisite: Elf to Prerequisite: Dex 17
Sorcerous Assassin	Prerequisite: Drow removed In addition, this feat is now a paragon feat
Spirits of Stealth	Prerequisite: Gnome removed In addition, this feat is now a paragon feat
Stone Step Spirits	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Strength of Stone	Prerequisite: Goliath removed In addition, this feat is now a paragon feat
Steadfast Tactics	Prerequisite: Dwarf to Prerequisite: Cha 15
Stonefoot Reprisal	Prerequisite: Dwarf to Prerequisite: Con 17
Strength from Pain	Prerequisite: Half-orc to Prerequisite: Martial or Primal power source
Underfoot	Prerequisite: Halfling to Prerequisite: Dex 17 and training in Acrobatics
Vengeful Curse	Prerequisite: Tiefling removed In addition, this feat is now a paragon feat
Vital Inspiration	Prerequisite: Half-elf to Prerequisite: Insight skill training
Wrath of Ages Past	Prerequisite: Dwarf removed In addition, this feat is now a paragon feat
Wrath of the Mountain King	Prerequisite: Goliath removed In addition, this feat is now a paragon feat

All epic feats in the PHB remain unchanged and all epic feats from Martial Power that remain are also unchanged. The following feat from PHB2 is altered:
 

EPIC FEAT	CHANGE
Ferocious Critical	Prerequisite: Half-orc to Prerequisite: Con 17

 

WHAT? NO LANGUAGES?
Two reasons:
1: In the series, everyone can speak with and understand everyone else. Xena and Gabrielle go to Chin, Scandinavia, India, wherever. There is never the tedious scenes so common in other series when the party linguist trade pidgin English with the village children.
   There are a instances of language barriers in the series, but only as vital plot devices, such as in Destiny, and The Price. If you design an adventure that depends on the characters not being able to speak a certain language, by all means do so. Under the standard rules, you would have been forced to make sure that none of the characters spoke that particular language, In a Xena campaign, you have total freedom to include any exotic language, confident that a PC will not be able to understand it, simply because there is no way they could have learned it beforehand. 
2: In all but the most basic hack ‘n slash campaigns, being able to communicate with NPCs is an important part of the fun, whether it is negotiations, information gathering, the exchanging of threats, or simply role-playing. Giving away three languages with each Linguist feat is proof that WotC feel the same. I'm simply cutting the middle man here, allowing for more varied choices of feats and making sure that such communication can flow freely, except when you don’t want it to.

No it isn't realistic, but you wouldn't be playing D&D or watching Xena if realism was your main concern.