I was looking at this old CryEngine 3 video that had many Crysis PC gamers superhyped 2 years ago, and I noticed there was one jungle environment involving the waterfall that I don't think I've seen from Crysis 1 and Warhead. Also we see a guy wearing Nanosuit 1 in combat on what seems like the backstreets of NYC. Seems like there might have been more story to Crysis 2 than what we got. And certainly, destructible environment on a quite big environment was evident.
This demonstration was done with Xbox 360 and PS3, so we can see that it was definitely possible for consoles to run some good stuff, but I guess they just weren't able to keep a good framerate.
I think this is what Crysis 2 would've looked like if Crytek didn't mind choking performance on the consoles.
http://www.youtube.com/watch?v=Ytx0OEEA5TM