Because it won't
just be a Dwarf with Dark Skin and Lava Eyes, it will be:
Human
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Azotha: Ugly children of the Vrykul, Barbarian and Vrykul features. (RPG canon only)
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Half Elves: Children of Humans and High Elves, refugees from Theramore.
Dwarf
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Dark Iron: From Blackrock Mountain, dark skinned with fiery eyes.
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Wildhammer: Traditional tattoos and tanned skin.
Gnome
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Leper: Irradiated Gnomes with restored sanity.
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Mecha: Gnomes 'blessed' by Mimiron, certain Mechagnome features remain intact.
Chris Robinson Approved.
Night Elf
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Illidari: Disciples of Illidan Stormrage, runic tattoos and burning green eyes, covered with a headband.
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Cenarion: Dryad and Keeper of the Grove features.
Draenei
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Man'ari: Twisted, demonic servants of the Legion. (We know Demons can secede from the Burning Legion if they find an alternate source of power, for example Illidan's Demons & the Reliquary of Souls)
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Broken: Draenei twisted by dark magics. (
Can in fact work with Draenei Skeleton)
Worgen
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Bloodmoon: Northrend Worgen, polar wolf features.
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Blackhowl: Worgen infused with the Blood of a black Dragon. Scales and Drakonid features.
Orc
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Mag'har: Uncorrupted brown and black orcs, natives of Draenor.
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Half-Ogre: Mok'thanal Orcs, a la Rexxar.
Troll
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Forest: Mossy skin, warpaints
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Ice: Cold, pale skin, white hair
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Sandfury: Coarse, cracked pale skin, black tusks.
Tauren
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Grimtotem: Black fur and warpaints.
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Taunka: Cousins of the Tauren from Northrend. (Would require head remodel)
Forsaken
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Elf: Undead High Elves, pointed ears and elven hair styles.
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Skeleton: Completely fleshless undead (Requires new model)
Blood Elf
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Darkfallen: Last remaining members of the San'layn, welcomed into the Forsaken by Sylvanas.
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Felblood: Some Blood Elves overfed on Fel Magic, causing effects beyond simply green eyes. Sprouting small wings and horns. Still friendly, however.
Goblin
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Gilgoblin: Aquatic goblins, created by Hobart Grapplehammer.
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Tinker: Due to numerous engineering accidents, certain body parts replaced with volatile goblin technology. Blackfuse style.
Pandaren
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Black Bear: Cosmetic option
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Tuskarr: Replace the Pandaren head with a Tuskarr head. No lore explanation needed choo choo ca choo i am the tuskarr.
Effectively tripling the number of character races that can be RP'd. I personally think it would be enough to be an expansion selling point, especially if a decent amount of work has been put into the subraces instead of just being simple texture swaps. Things like unique faces, and hairstyles for example.