Seriously.
We're expecting the big fight Naruto x Sasuke, or whatever solution is found to bring him back to Konoha.
We know that he won't die, at least right now, and since Naruto promissed it to Sakura, most likely he will bring Sasuke back.
I can think, of two things:
1. Naruto convinces him to be *good* again. He comes back to Konoha. Is he going to go back being the simple genin that he is and do D and C missions?
2. They bring him back to Konoha still under the influence. There's going to be this whole sealing or whatever to *save* him from Orochimaru. Will it work? Still what is he going to do as a ninja?
I think since he threw away his forehead protector, there's not much going back for him. And IMO he should deal with the consequences of what he did and try to get rid of Oro's influence by himself.
Still, what could be other alternatives to save him???