Madara is going to find the real Naruto and fight with him. Orochimaru is going to take Sasuke to speak with Madara because he "knows everything". Sasuke is going to speak with Madara and decide he doesn't like him. Sasuke will team up with Naruto and fight Madara. Madara should be able to beat both of them, but doesn't because of PIS. They weaken Madara, and Orochimaru takes over his body. The Soothsayer has spoken.
Beware the ides of March.