If it were up to me, MTW II would be based around the Glorius Achievement mode. In other words, campaigns and what not would be both costly and rewarding, and instead of the whole "ok I have 225 turns lets conquer all of Europe mentality" I'd rather go with the, "ok, 225 turns, I need to pacify Scotland and Ireland, and make England the cultural center of the world."

Something like that would be amazing, although I'll prolly look for it in a mod instead of the final release since I imagine not that many people agree with me.