This is looking really awesome !
I've one (BIG) concern, though. I didn't see anywhere in this thread or in the video, you guys mentioning your sources of influence and wow, they are REALLY obvious... The little leg robot is almost a rip-off from Metal Gear Solid 4, I think that you guys could at least refer to it. Actually, I can see a really big influence (almost a copy sometimes) in almost all the design. From Tron, to MGS, Deus Ex, etc.
I love the quality of the work, but I still can't understand how people can post something like this on a CG forum and not mentioning anything...
Feng zhu did an awesome video not so long ago where he talks about the difference between Inspiration and Reference. You guys should watch it ;-)
http://www.youtube.com/user/FZDSCHOOL#p/u/5/MDuayEzH8c4