Have people forgot that Kishi made an interview according to what He said " Naruto will take care of Juubi then Madara and lastly, Sasuke."
Even so many people made lots of plausible theories, it won't change anything since Kishimoto said it himself that Madara is the Final Villain.
Even so many people made lots of plausible theories, it won't change anything since Kishimoto said it himself that Madara is the Final Villain.