User blog:M4$t3r4$$4$$!n/Ideas for future AC's?

So seeing that Assassin's Creed is perhaps the best third-person stealth historical fantasy etc etc game, it would only make sense that Ubisoft doesn't stop after AC III. I have heard rumors of a possible Assassin's Creed IV release on 2013 or 2014. What are your ideas for this and any other future AC's? Modern day ideas, historical periods, anything.