4. A New Mission Type
Earlier I mentioned Naval Battles, which were for all intents and purposes represented an entirely new gaming mechanic which, while maybe feeling a little tacked on, were a welcome addition to the tried-and-tested roster of activities available in the previous AC games. Now let's say the next AC game is set in, I don't know, World War II. How awesome would it be to see aerial dogfights appear as a brand new mission type? Now, assuming we're looking at a WWII themed AC game is a pretty huge leap of the imagination at this stage but that's just to illustrate the point; AC IV should feature another entirely brand new mission mode, similar to naval battles, which were an absolute gameplay revelation in my eyes. Of course what this'd be would be entirely dependent on the era the game is set in, but if Ubisoft wish to keep the series fresh, including new, never before seen mission types would be one sure fire way to do it.