Wow! It looks great. This is definitely the big change in direction that I was hoping for. Also, kind of off-topic but somehow I'm downloading AC2 from PSN for free. A year or two ago I bought AC1 on PSN, so I think it's muddled that purchase with the new AC1 & AC2 bundle which just came to PSN today. Unless Sony giving it away for free on purpose (which I find hard to believe).
I would choose world war 2, because It seems like it would fit in the best. And It would be pretty cool to be an Assassin in World war 2. In Another words It could be like Real life assassin ready to fight with his Gun in a World war 2 death-match.