I don't think it will make 2010. I mean, there's the new WoW expansion already. And Starcraft 2, which is pretty sure coming out in 2010 now. That's 2 games from Blizzard in a year, which is more then they've released over the past years. Lol.
So probably early 2011, along with at least 1 of those secret projects they keep rambling about.