Future Trunks will go to battle Zamasu and Goku Black alone as Goku and the others go back to recuperate in "Dragon Ball Super." On the other hand, Piccolo says he has a way to defeat Zamasu and Goku Black.
In previous episodes Goku and Beerus destroyed Zamasu to put an end to his evil schemes and went to the future to find out how it was affected. However, things didn't go as they were hoping for and they were met with a cruel reality, Zamasu and Goku Black were still alive. Goku asked who is the Zamasu they killed in the present timeframe and Goku Black replied that his body is the real Goku--except for the heart.
Goku saw Chichi and Gohan getting killed in another timeframe and got rilled up. He fought with Goku Black and got utterly defeated. The evil duo accused future Trunks of being the cause of it all, however, Trunks had a sudden power boost. He asked Vegeta to leave Zamasu and Goku Black to him as they return to the future to recuperate.
Future Trunks will play a large role in episode 62 (Oct. 16) titled "I Will Protect the World! Trunks' Angry Super Power Explosion!!" He will hold off Black Goku and Zamasu so that Goku and the others can go back to the present. Vegeta says there's no way they can beat the two in battle but Piccolo will suggest a solution. He says the two can be defeated with the use of Mafuba or the Evil Containment Wave, a technique of sealing demons into a container.
"Dragon Ball Super" spoilers for episode 63 (Oct. 23), "Don't Defile the Saiyan Cells! The Curtain Rises on Vegeta's Battle!!" reveals that Future Trunks will take fatal damage in the battle and just as Black Goku and Zamasu are about to finish him off, Vegeta and Goku will return to the battle.
"Dragon Ball Super" episode 64 titled "Praise and Adore Him! The Explosive Birth of Merged Zamasu!!" will air on Oct. 30, while episode 65 titled "Final Judgment?! The Supreme God's Ultimate Power." will air on Nov. 6.