If a tweet from Spike GTTV's host, Geoff Keighley is to believed, we should expect the first glimpse of footage from the upcoming Crysis 3 to feature on the show, tomorrow night. Yes, tomorrow as in around 24 hours from now.
Crysis 3 is expected to feature Crytek's CryENGINE 3, but we don't know the exact details of the engine the game itself uses, or whether it'll be ported from the console to PC (which is what I expect). We shouldn't expect any gameplay footage, that's just my opinion, but probably some pre-rendered footage.
There's not much else to add, as this news is quite short on info, but we should expect to see something from Crysis 3 tomorrow and you can be sure we'll post it up as soon as possible!