What if sasuke go back in time by some method to stop the uchiha massacre.

[Honord Sage]

In some other dimension and time line Indra never paid attention to Black Zetsu’s whispers nor did His Uchiha children and thus the Massacre and the rebellion never happen.

 

[SatanicGod]

Changing the past would be killing himself from his original reality also Naruto wouldn't have seen Sasuke as a rival, Naruto wouldn't have tried to master the kyuubi's power or had the drive to overturn the hatred of the bijuu.

In other words BZ would solo NV

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