Please tell me it's not the same as before. AI in crysis had incredible peripheral vision and accuracy, like they can shoot you with a shotgun at sniping range which is ridiculously unrealistic. I hope the devs have noticed this...

I don't expect to see many gunpowder based weapons being used by aliens myself, but theoretically the AI is all new.

well from most of their videos they claim to have the best or greatest AI ever or something along those lines so it seems that they have been improved

well, if you've watched gameplay vids,
you will realize that some of the AI is pretty amazing. If you get behind a huge cover object, like a truck or something, they will jump up on top of it or climb on top of it and start shooting you. They try to get above and around you. Some of the AI was awesome

The AI shouldn't come unconsidered since everything else looks totally kick ass.