this is timeline where Goku Black realizes his mistakes and betrays Zamasu, then he uses Super Dragon Ball to restore all damage he has done and everything is back to normal

Zamasu: Goku Black! How dare you betray me you coward!

Goku: Goku Black? Wait are you actually helping us now? Am I dreaming or what?

Vegeta: Kakarot this is actually real, maybe he realized his mistakes

Goku: Hmm I think so too, but since he restored all damage he has done, he doesn't feel like a threat to me anymore

Zamasu: I'll make sure I'll get revenge on this bastard for betraying me!

Goku Black: I've realized how corrupted I was by my plan, Gowasu explained situation horribly and made things worse, I've realized that not all mortals are that bad, I've changed my mind...

Goku: Wow! That's actually a win for us! Amazing!

Vegeta: Why not Zamasu tho?

Goku: Idk, maybe Zamasu was the one who corrupted Goku Black

Zamasu: You mortals shut up! And you Goku Black! You dare betray a god?!

Goku Black: I am god too! But not an evil tyrant like you anymore!

Zamasu: How dare you talk to me like that! I will send you to hell!

Goku Black: No I will be sending you to hell!

Goku: Yeah Goku Black! Show him!

Zamasu and Goku Black start fighting after a long fight, Goku Black defeats Zamasu

Goku: Yes! He actually won!

Vegeta: Finally he defeated that bastard Zamasu!

Goku: Heheh, I bet Zamasu is in hell now!

Goku Black: Yeah, he sure is haha

Goku: I'm surprised you turned Good but that's cool!

Vegeta: That was unexpected

Goku Black: Yeah, I'm no longer his puppet anymore!

Goku: Cool! Would you want to join us?

Goku Black: Yeah, You mortals are so forgiving but that's a good part

Vegeta: As much as I can't believe it, He did our job now, Alright now let's all get back to our Timeline!

After that when they came back to normal timeline both Goku, Goku Black and Vegeta was given news about tournament of power starting in just 1 year so both of these 3 trained

1 year later