Heh, I don't think he will become Hokage, for a few reasons, A) I belive even if he becomes the strongest in the village, he would rather get attention (if he has to at that point) by protecting the village as something of a person with a fairly normal life, maby even have a kid at one point. B) Hes not a good leader, Sakura would be better to keep peace and trade going. But thats just my way of thinking ahead of where even the Manga is.

Oh and C) I think that he may grow to become a teacher, ether at the acadamy or like Kakashi is to him.