ToeBall's dead right. Most likely, Crim is under not only NDA but has signed a proprietary information agreement. I had to for my secret clearance PC job; I can tell you I have a secret clearance PC job, but anything else over the internet and I would have to find you and kill you. 
Anything Crim works on for Crytek would, obviously, have to remain solely in Crytek's hands, and anything he does for MWLL has to be IAW the NDA, DYS?
You hit it right on the head. Now with that said officially, unofficially of course there are always talks and ideas being spread
I'm good like that...Just because I work here now though also doesnt mean i leave MWLL out in the cold my boss is on my case worse than everyone else about releasing the mod hehe. The only real disadvantage is a little less time but my wife is good about letting me work when i need to.
Sounds to me like they are hoping for an increase in sales for Crysis when the mod comes out

It's gonna work, since there are many, including me, that are getting that game just for MWLL. Or maybe they have plans to create a second game after MWLL? MWLL2 perhaps? Who knows ...