User blog comment:Master Sima Yi/Assassinews 08-02-'13 — Next game will be all new, plus DLC promotional material/@comment-189.176.8.250-20130228015047/@comment-3168501-20130228041729

It's my opinion as well, but if the pirate poster as well as the map with the Assassin insignia that've been floating around the Web are legit and not just photoshop images or early development prototypes, then ACIV will be entitled "Black Flags", though I personally feel they should move past Desmond's ancestry and move on to a new modern day protagonist who's closely connected to Eve.