We know that Rikodou Sennin had two sons. He chose one to be the eyes(uchiha) and the other to be the body(senju). He chose the younger brother to bring peace to the world, so the older brother was consumed by hatred.
Naruto defeated Nagato, reincarnation of the sage of six paths, and Nagato said he wanted Naruto to bring peace to the world, just as Rikodou chose senju. Sasuke is always consumed by hatred and he admitted he was jealous of Naruto for having freinds and him and Naruto always fight. Tobi said it was destined by fate for Sasuke and Naruto to fight, he also said that naruto reminds him alot of Hashirama Senju and he has the will of fire. Naruto also has sage mode which furthers his connections towards Rikodou. Also if Naruto is a senju he may have the ability to control the Kyuubi which makes even more sense
Naruto defeated Nagato, reincarnation of the sage of six paths, and Nagato said he wanted Naruto to bring peace to the world, just as Rikodou chose senju. Sasuke is always consumed by hatred and he admitted he was jealous of Naruto for having freinds and him and Naruto always fight. Tobi said it was destined by fate for Sasuke and Naruto to fight, he also said that naruto reminds him alot of Hashirama Senju and he has the will of fire. Naruto also has sage mode which furthers his connections towards Rikodou. Also if Naruto is a senju he may have the ability to control the Kyuubi which makes even more sense