1) Smarter A.I.'s- Crysis 2's A.I.'s in campaign where retards at times, walking into walls LOL!!
2) Melee attacks- Would like to see it toned down some in MP. I see more swinging elbows then bullets LOL!! Hopefully they do not so much damage in MP in Crysis 3. At the same time I would love to see stealth kill with knives instead of the melee attacks.
3) Better host selection- right now I get connected to the people with the worst or furthest or a combination of both type of connections. Hopefully Crysis 3 will have better code written in to fix this problem.
Fingers crossed.