Originally Posted by Shino'sDad
Orochimaru cells in Madara = Orochimaru takes over Madara when they arrive on the Battlefield = Orochimaru for final villain. Calling it.
It would be great, though for some reason I somehow see Orochimaru sacrificing himself to save the day, not sure why. Something in the way he was acting and talking after he was brought back by Sasuke, as if he had gained some wisdom after spending so much time sealed in and just observing the events around him. He truly is the best villain in the series though, regardless of how powerful he actually is as a shinobi.