Crysis 2 came out a little over a year ago, I really don't think 1 and a half years development is going to be enough to make Crysis 3 good enough. Crysis 2 was in development for much longer and they still never even fixed the damn game.
It's going to end up being a Crysis 2 rehash with a few new weapons, maps and animations which is the sad truth. Crysis 2 failed, why does CryTek think making the same game again is going to do any better?