It makes no sence at all for Naruto to ever obtain the rinnegan, people forget that the sharingan is a mutation from the rinnegan. "The older son, who inherited the Sage's "eyes" (his powerful chakra and spiritual energy), believed that power was the true key to peace. The younger son, who inherited the Sage's "body" (his powerful will and physical energy), believed that love was the true key to peace". The eyes would be from the uchiha, so its more likely for sauske to get the rinnengan then Naruto. thought this would never happen. Naruto is a representative of the younger brother, getting the sage's body. And i know Nagato was an Uzumaki and got the Rinnegan, but Madara said he gave it to him, and i beleive that since the Rinnegan should never have gotten to him through genetics. And Nagato was only so strong because he had Uzumaki blood (a relative to the senju) and the Rinnegan, so he was 2 paths out of 6 already. Naruto may get some new power soon, but i dont see how in anyway it could be the Rinnegan. If anything it will just be a way to have total control over the Kyuubi, and maybe he will somehow obtain the other half of the Kyuubi's chakra, through some methods unknown. But Rinnegan is out of the question.