Crysis senior game designer Bernd Diemer has said that co-operative and zero gravity multiplayer modes will have to be added by the modding community - using the Sandbox editor provided.
Crytek would loved to have added the content itself, he told Eurogamer.de in an interview, but it just didn't have time.
Instead, it seems as though its been improving the AI again. Apparently the game's so complex now that some enemy-brain fine-tuning was in order. Presumably so that you don't catch any of the nasties off-guard, randomly walking into a wall or talking to a tree.
And don't expect the aliens to be skinny little push-overs with the thinking power of a footballer, because they're as smart as the soldiers this time around (gosh), and will attack and manoeuvre in groups.
Diemer also wanted to say just how angry he was at the leaked footage from an old version of the game. It's not representative of where Crytek is with the game right now, apparently, so just you watch your step.
Those of you with German powers will want to scoot over to Eurogamer.de for the full interview, plus all the latest news and reviews from that neck of the woods.
Alternatively you should take a peak at our Crysis gamepage, which lots of bits of media pieces call home.