"Dragon Ball Super" has presented Goku Black and Zamasu as some of the best villains in the entire franchise, and the upcoming Episode 61 will finally unveil who the former is and what his connection is to Zamasu, a former Supreme Kai apprentice for Universe 10.
As stated by Attack of the Fanboy, the synopsis of Episode 61 reveals that Goku Black considers Goku and his friends the greatest threat to the "Zero Humans" plan and turns into Super Saiyan Rose in order to eliminate them. As he does this, his backstory is stated to be unveiled.
The report states that a page from a Japanese magazine has been leaked on Facebook via GojitaAF. The post reveals that in episode 61, it will be confirmed that Goku Black is actually Zamasu who had switched his mind into Goku's body. All of this mind and body swapping is hinted to have happened in the far future.
It is also stated that Zamasu is indeed immortal, and he has only grown more powerful when he switched his mind into Goku's body, making him one of the most powerful villains in the "Dragon Ball" franchise.
Attack of the Fanboy points out that the series has yet to introduce the immortal Zamasu as the one previously shown was easily killed off. It is possible that the immortal version of Zamasu comes from a different timeline or a different dimension altogether, explaining how he is immortal or how he can return despite being killed off.
"Zero Humans" was explained in Episode 60 as a plan to exterminate all of the inhabitants on Earth due to the connection between Earth and Zeno, the most powerful being in all of the 12 universes. This does not explain, however, why the Saiyans such as Goku and Vegeta have proven to be the most powerful warriors thus far.
"Dragon Ball Super" episode 61 is scheduled to air on Oct. 9.
