According to an article on Kotaku the next game in the Assassin’s Creed series will be titled Assassin’s Creed IV: Black Flag and will deal with pirates.
Kotaku was tipped off by an anonymous source who sent a picture of a poster that shows a white-hooded man fighting a couple of pirates.
Ubisoft already announced that the next Assassin’s Creed game would feature a new character and setting and that it would appear during the next fiscal year.
So is this actually the next Assassin’s Creed game? Who knows. But I’m sure Ubisoft will share more with the world in coming months.