Lets return to the lore. I was thinking what would happen if a mysterious hooded man appeared and gave vials of pure light and power, one to orcs, one to tauren, one to night elves, one to forsaken, one to blood elves and one to human, dwarves and gnomes.
Orcs to become brown, tauren to heal the central Kalimdor, night elves to heal azuremist and all of their forests(including the world tree), forsaken to heal the lands of lordaeron and become alive once again, blood elves to heal Quel'thalas and make 'em stop using fel magic. And one to the races of southern Eastern Kingdoms to heal their lands(deadwind pass, duskwood, blasted lands, redridge, and all of the lands of blackrock).
Oh, and one to the races of kalimdor to destroy the silithid, seal C'thun under the earth, and make Silithus a mormal desert like tanaris and ruins of Ahn'quiraj a jungle.