Hi I'm pretty sure it will be announced as and when they see fit, i dont imagine any amount of speculation will change that, but we can hope i suppose.
The PC will get a multiplayer demo as stated in the following tweet: At this time, Crytek & EA are glad to confirm that we'll be releasing a pre-launch Crysis 2 multiplayer demo on PC! Stay tuned for details.
Kinda dumb that they wont tell us atleast SOMETHING :/ would've been nice if they just say like, Its going to be delayed because of technical issues or something OR a release date