Obviously, the manga ends with Naruto jumping up out of the way of Sasuke's chidori. Since he will jump into the air, he'll be safe from sasuke's stupidity: using lightning while standing in the middle of a stream of water. Sasuke's momentum will cause him to hit the water with his chidori, and he'll be electrocuted. Since this will be a suicide, it will break the cycle of reincarnation, and the fight between Indra and Asura. It will also end the line of the Uchiha. Now, everyone ELSE can live happily ever after, and Naruto won't have to feel guilty since he tried to save him, but that fool sasuke was just too angry and selfish to be saved.