We still have many battles left in the manga. It's kinda hard to predict which one follows which.
For sure i can tell that Juubi will evolve one last time to his perfect state. I don't know but it's possible that anyone becomes his Jinchuriki. Madara is the best candidate (since he needs it to use Rikudo's planetary jutsu), but i'm not seeing how he will make Tobi use the Rinnegan on him.
I'm confident that Hashirama, Tobirama, Hiruzen and Minato will fight Madara and the Juubi too.
We're in for another year at minimum. imo







