I know a lot of people are saying French Revolution or any time in France, but that would be a waste of the French Revolution for future games; They should leave France to a French Assassin. I personally am hoping for the War of 1812, as not only would that give you an excuse to go to Canada and other areas, it would give a lot more naval possibilities since 1812 was mostly fought overseas.
I came here to chew bubblegum and kick ass, and I'm all out of bubblegum.
Id like him to fight in america I like the history, Im not from there and I find all this interesting and would like it to continue. Otherwise why not goto Europe with his boat, it can look like revelations the byzantine empire was still around in europe, or eastern europe so it can kinda feel like the roman era in AC2. Its hard to pick an era. Something that make sense with the story and where the keys to saving everyone is
"Why do you hesitate to extend the power of Macedon - your power"-Alexander The Great