I'm thinking that it will probably happen. They already have it setup and they said it was coming out soon. Also, it just seems like a smart move for Blizzard, especially with Cataclysm looming. Everyone will change races now, then Blizzard can nerf/buff racials for Cataclysm and also bring in the new race/class combos, people will switch to the more OP racial (at least PvPers) or switch to a new race/class, and then they will allow race changes for Goblin and Worgen after about 3-4 weeks of Cataclysm being out, which then causes people to maybe want to switch races to those respective races.
Seems like an opportunity at a lot of money to me.
Thoughts?