There's a couple threads about it. Here's one of them:
http://www.disboards.com/showthread.php?t=2844135&page=9
Everything is just speculation, no one knows for sure. IMO, it would have to be an announcement to appeal to the general public - so probably some kind of promo. Other things I've heard which I'm not buying:
-DVC at GF - I doubt they would use such a public forum of Dick Clark's NYE to announce this. Most people don't care, frankly. And most people probably don't know what DVC or GF even is.
-Avatarland - this has already been publicly announced and is still several years out.
-Fantasyland expansion info - I'd venture to say this is meaningless to the general public. Not enough to make people feel like they should go visit, especially those who wouldn't normally consider a Disney vacation.
-XPass - again, meaningless. This won't make sense to people unfamiliar with Disney.
-MK open 24 hours on leap day - this is a possibility because its a unique year and they are using NYE to make the announcement, but considering most people plan vacations months out, it's no good for the general public. Would probably only appeal to people in driving distance.
-new theme for 2012 - maybe but that's very boring. I for one don't care about the themes unless a promo comes with it. I don't think they would be hyping an announcement that is just about a theme, and they have never used NYE as an outlet to announce a theme before. Why start now, unless a good promo is coming with it.
Just my 2 cents
