Looks like an amalgam of Ubisoft titles. That can only be a good thing.
That said modern day sections in the AC series don't look like this game at all. You can't drive in AC, you can't hack, you don't have free roam of a city while interacting with civilians and you certainly don't use semi automatic fire arms. Any delay can only make what looks like a great IP that much better.
I don't care about the altitude, I just want another drink.