I think Naruto is bound to learn water elemental manipulation. His mom had water based jutsu, and There were hints during the wind manipulation training that it is possible to have 2 elemental infinities and most jounins do (Naruto will become higher than jounin). The water element would match up well against Sasuke cause there is no way Naruto could beat Sasuke with wind element based jutsu. It is called shippuden btw...
So Naruto will eventually learn the water element, and he will put them together to make a new ability.
Here is a reference about element manipulation