Naruto will get the Rinnegan
Both Nagato and Naruto was considered the "Children of Prophecy" and Nagato had the Rinnegan. If Naruto is supposed to be like the reincarnation of the 6Sop, then I don't see why he won't unlock it in opposite to saying its impossible. People are still debating that the Rinnegan must have been a transplant or something in Nagato but remember, it was said a number of times that he is the Child of Prophecy, along with Naruto. People believe this is impossible since a sharingan user (Madara) unlocked it, but its still unclear how he did it. Madara for all we know was a Genius and Unbelievably strong and that he could have just figured out how to do it himself. But just think about it.
-Naruto will unlock the Rinnegan
-Nagato naturally "awakened" the Rinnegan, with some of Madara assistance (not transplants)
Go ahead and Flame, Ill bookmark this thread and put everyone who flamed me on blast once the chapter comes out you see I was right.
Additional notes: I think that naruto unlocking the Rinnegan during the battle will give him the "power" up he needs to beat Madara or at least justify Madaras death.