So Goku Black's true identity is finally revealed (Spoiler Warning)
So finally we now know who Goku Black is and it's Zamasu who switched minds and bodies with Goku
Not going to lie I was pretty surprised by this. I guess we can finally stop thinking that he was Goten lol.
http://en.yibada.com/articles/163766/20160929/dragon-ball-super-episode-61-jump-preview-released-goku-black-s-shocking-identity-revealed-major-spoilers.htm