Well, I have a scenario for Sasuke giving an eye or his eyes for Naruto. But, I don't think in this fight. It would be on the final fight. Like if Sasuke will die, and before he dies, he gives him an eye just like Obito did with Kakashi.
Don't know, but I just don't see it that Naruto will have Rinnegan.
But for something like that, Naruto would have to have an injury like Kakashi's. His eye was wounded and he would have probably had impaired eyesight afterwards, so Obito gave Kakashi his eye, I suppose such a thing is not impossible, considering Kishi's penchant for parallels, but I don't see that particular scene repeating itself.