I'm still sticking with the idea that blood eves should break off from the Horde and form their own faction. They have NEVER fit in well with the Horde. EVER. They would make a great third faction, I think if done well (especially from a lore perspective) players would love it. Also that third faction would get some cool new races :P (since you can't really have a faction that is made up of just one race, and maybe Pandaren, since Pandaren are neutral).