First off all the kages are going to stay dead. The scroll suigetsu found is the moons eye plan and sasuke and orochimaru is going to stop it being a twist of plot. Sasuke will realize obito used him for he can acquire the rinnegan and used rinne tensei and orochimaru is a user of edo tensei so he will defeat madara. The people that 'know it all' are obito and madara. Sasuke will find out both sides of the story and choose his own path and call both the uchihas a disgrace to the clan. After savign the world the allied shinobi forces will praise him but he will tell them how he will one day destroy the world his own way and reveal the truth behind the uchiha clan massacre to the world. Naruto will become the leader of the new allied shinobi utopia and they will be peace. Sasuke will live in solitude with possibly orochimaru promising he will one day give him his body if he gives him senju DNA, in reality sasuke knows that both him and naruto will die in there final fight like naruto said. Than there will be a future arc and sasuke will attack the world with his rinnegan (they said sasuke resembles the elder of the Rikudō Sennin son who possesed his eyes, spiritual energy and powerful chakra and fought for hate) and tailed beast mode naruto ( who resembles the younger son who possed the sages body, physical energy and powerful will) and they'll both die in an epic fight. In the end naruto will seal Kurama in his and hinatas offspring. sasuke may kill orochimaru though I'm not what his fate will be.