I hope that fight doesn't come down to the 2 killing each other and Sakura has to pick one. I want a clear cut ending where Naruto says, "Screw this. Here, take this Rasengan and shove it up your ass" or however he chooses to end it.
I suppose Sasuke could stay alive through the end of the series, but I think he would stay in exile if that were to happen. I just don't see a single person welcoming him back home. Oh, and you forgot Jiraiya's third regret: failing to win Tsunade
Besides, not only do I want Sasuke to die, but I think him living makes the story too...cheesy. I'd like to see Naruto learn that there are some cases that are just lost causes and that he has to make decisions that benefit those around him.
Yeah I personally hate Sasuke. He's a total moron. I kinda just realized that the whole hate/forgiveness thing may be the very reason Sasuke could return to Konoha, but from a realistic perspective it really is too cheesy. He WILL have a change of heart i'm like 99% sure of that, but I hope he doesn't survive.