User blog comment:Master Sima Yi/Assassinews 03-03-'13 — Assassin's Creed IV: Black Flag trailer and screenshots/@comment-4975789-20130304165753/@comment-4975789-20130304165947

They recently said that the modern day stuff is going to be done like ACIII:Liberation (i.e. YOU are in an Abstergo Entertainment product, reliving Desmond's ancestor's memories).