I think Kishi didn't just make him alive for reincarnating the Hokages, i really want him to be the last villain. I really hope NS doesn't end after the War =D So what do you guys think?
I've had this idea as well. Maybe Orochimaru will sneak in and take over Madara's body after Naruto and Sasuke weaken him, thus becoming a juubi jin. Probably not gonna happen though.
Why are people so hooked on him being the final villain. Orochimaru and his forbidden jutsu are weak in comparison to any elite shinobi. He'll be lucky to be acknowledged at all at this point.
I've been saying that he'd be the Final Villain for many months and I will believe that until he dies or does something to suggest otherwise. I just don't see this manga ending with Oro on the sidelines, especially when he's still interested in his experiment.