User blog comment:V0DeusEstDominiMei/Question/@comment-2111068-20120226100118/@comment-71.211.28.234-20120403135152

Sly's ancestors will be playable characters that you can play as by picking them in the Safehouse/Hideout. But they won't be exact replicas of Sly. They will have unique abilities such as Rioichi's leaping dragon. They will also have their own missions and jobs to complete. From Rioichi Rebel B-)