Re: Naruto Manga Chapter 620 Discussion and 621 Predictions
This is my current prediction of how the manga will play out:
When Minato is questioned, he will reveal the truth about the 9 tails attack on the village that signaled the extermination of the Uchiha clan. Tobi told Sasuke that this just a natural disaster, but really it was him and was his only lie about Itachi's story. This will be the final piece in the story convincing Sasuke not to destroy Konoha, but turn his anger toward Madara and Obito... the ones who ultimately caused the destruction of the Uchiha clan.
Meanwhile, the Juubi goes wild and enters its final form after the alliance severs Madara and Obito's link. Naruto and Bee separate the Juubi from the alliance to isolate its destruction. Sasuke, Orochimaro, and the 4 Hokage enter the battlefield and it takes all of them to finally destroy Madara, but it will be Sasuke who ultimately brings him down. Kakashi and Obito have a final battle revealing the full story about Rin's death. The two take each other out, but Obito goes out Rinne Tensei style reviving somebody... probably Rin.
Orochimaru goes with the Hokage to try and take control of the Juubi, but Minato stops them proclaiming that his son can handle this. Minato has yet another father and son moment with Naruto giving him the other half of the Kyuubi chakra for the final power-up.
After Sasuke's revenge on the last two Uchiha, he resolves to wipe the final tarnished memory of the Uchiha clan from the face of the earth -- the 9 tails. This forces a final fight between Sasuke and Naruto in all its epic awesomeness. It doesn't happen right after the battle because Sasuke was injured pretty badly in his fight and needs time to heal. When the fight happens both of them ultimately die as Naruto predicted earlier, but they become friends again as they die.
We'll see how little of it comes true...