I agree with all of your points, aside from the second. I wouldn't mind the front touch being used so much, but the back touch is a pain to use when accuracy is needed and as for motion controls - really? Isn't everyone a little tired of that by now?
What I would like to see is some sort of dynamic spec-ops mode, like what they did with Unit 13. You could choose to play any one of the spec-ops missions, each designated to a certain map, with specific objectives, or you could tick a box that says 'dynamic' and it would add/remove/replace objectives within that map, as well as enemy and weapon placement, extending the co-op experience almost as far as the multiplayer, in terms of replayability.