Just imagine naruto about to blow up the village with the same attacks he used against indra's arrow, only for sasuke to come at the last minute and tank it with a perfect susanoo. So freaking epic
I'm sorry but I just had to point out that Sasuke would get blown to smithereens if he tried to tank that attack with PS. That attack along with Indra Arrow were Naruto and Sasuke's trump cards respectively that would blow any of their own defenses up easily. He would have to stalemate it with Indra's Arrow again, and that would be counterproductive since that would just blow up the whole
village anyways.
OT: Sasuke is pretty damn badass. It would be really cool, not to mention the plotline leaves the appearance of more Ootsuukis.
It'd be really interesting if Sasuke actually befriended a group of Ootsuukis, leaving interesting character dynamics and a team
that could actually fight with Sasuke on the same level, and allow for a final enemy of extremely powerful proportions.
Of course, that would be problematic on why there would be no reference to them in Boruto the Movie. If the movie could
have Sasuke leaving once again after Boruto the movie though.... Jackpot!