Cata Jan - Dec of 2010? Maybe, Or just maybe... but this might be a long shot... Cata will be out when... um... Blizzard tells us "WoW expansion Cata will be released XX time, so be sure to get you a copy!!!"
Thats just a long shot... I dont know if blizzard knows when they'll know when cata is ready for release, so when its ready they'll surly know and then theyll let us know that they know that cata is ready for you to buy"
I'm still going with Cata by May. I don't see how they can delay it longer than what should be six months after the apparent 'final' point patch for WotLK. IMO the promise of new races and thus a lot of rerolling is just too much.
In fact I think it would be awesome if they introduced the new races just before the expansion's release, along with the first effects of this Cataclysm itself.
I can neither confirm nor deny such a thing at this point in time. Even my magic imp ball is unwilling to answer.
I think Cataclysm should come out on December 21, 2012, and thus fulfill the conspiracy theories of a great cataclysm to end the world.... of warcraft.