(Possible Legion Spoilers)
So aside from the obvious Warrior hall,highmountain and the unused but established vykrul clans of northrend.
Vykrul Champions are showing up in the monk and hunter stories as important npcs too.
which brings a second question if they are hinting at this playable future where would they end up and who would be their counter-part? Ogre?(Requested and established for horde) Naga? (another demon hunter race and the illidari joins both factions.)