you mean sasuke and madara fighting the alliance?im not talking about illusions world madara come back to life become the 10 tail jinchuuriki him and jubi do some op shit or something
wrong they were already discriminated against madara realized before everyone else and that why he got pissed and leftWell, first of all..
if Sasuke does arrive on the scene, he will not be alone. he will be with Jugo, Suigetsu, and most likely Orochimaru. so it's not going to be the kind of confrontation that you're thinking about.
second of all..
no, that is not going to happen. for two simple reasons :
1) Sasuke hates Madara, because Madara was the reason as to why the Uchiha Clan were discriminated.
2) Sasuke hates Obito for manipulating him, and lying about his identity.