Judgement101 said:
They need to make it less linear, give us side missions instead of go here, then there, then assassination, then here.
I was thinking this after playing AC2 (I don't have brotherhood yet.) While you weren't being told where to go all the time, things were still really linear. It'd be nice if it went back to the very solitary nature of the original but just allowed you to figure things out on your own.
I was thinking that a good opportunity would be to have Ezio go off to the New world, and maybe have a child who you end up playing as after Ezio's died. Assuming there aren't many Assassins in America, it'd let the player be a lot more solitary as he went after his objectives (no doubt preventing Templars spreading influence through the New World and maybe safeguarding an American piece of Eden,) figuring out where he should be himself and relying less on other characters to drag you around.
It might also give room for better gun mechanics. If real muskets came into broader use as they did around that time, it could provide the framework firearm-based systems that could take the series right into the mid-late 1800s in terms of a viable combat system while keeping the Assassin-ey stealth and fluid combat. Not sure how well that'd work, but if we're gonna start piloting Desmond around more, the series is going to have to introduce some kind of gun combat system.
Either way, I think America's the way to go. It could be a near-sequel to Brotherhood rather than a straight AC3, because I'd imagine the plots being rather heavily linked. For 3, I could imagine Desmond being a near-master Assassin, running all over the world, tracking down pieces of Eden and learning about the templars through the animus while going through tonnes of awesome historical locations (still have Greece, Persia, Egypt, India, China, Japan, and the US Revolutionary War at least to go through,) and also tracking down the templars, pieces of eden, and whatever other mystical MacGuffin needed to eventually save the world in the present. Maybe it could just be a bunch of little 5-hour episodic games Ubisoft, if you're looking for a fun way to extend the series and go with the flow while not appearing as though you're just milking the fans.
Just my 2 cents there.