What about no new races? Heck, Blizzard already has a hard time letting all the existing races contribute to the storylines. Where have the Draenei and Worgen been, hmm?
If you don't want more races who don't do a f*ck then stop asking for more. Besides, Blizzard is busy with the updated player models anyway. I don't think they would also work on new races on the side. I know I'd rather have updated player models than more new races anyway, so no new races is good enough for me.