User blog comment:Master Sima Yi/Assassinews 03-12-'14 — New Assassin's Creed in Victorian London leaked/@comment-24760042-20141206175535/@comment-173.189.47.87-20141206195100

Now it reminds. What happened to John after AC4 and did Abstergo experiment on him? Because in one of the modern cutscenes in AC unity. It Showed John in a test tube.

BTW I know John died in AC4.