Quote Originally Posted by The Archangel
Maybe it's just hopeful thinking but in theory he could learn a filler jutsu that could be added to some none-canon fighting scenes in the future.
Exactly, like I already said. The director that does all the best Naruto fights has a habit of adding parts to those fights that make them more awesome. Sometimes he even adds abilities(for example, Shikamaru's use of the water scroll on Kakuzu).

They could give Naruto some new low level abilities. Like a wind slice like Sora's, and that gives that director something else to work with when he's adding those little filler moments to the fight scenes.

Quote Originally Posted by Kraco
Haha. We have seen a few minutes of Sasuke every now and then. He could have plenty of new skills that we have had no reason to see.
I agree with this. Sasuke didn't even get serious in his fight with Squad 7. He might have learned a bunch of stuff he didn't bother to use on them because he wasn't pushed.

Quote Originally Posted by Azonalanthious
Also, one thing to remember is that it was stated at one point that it took the fourth 3 years to develop rasengen. Under Jiraiya, in the same time of 3 years, Naruto developed a new version without using Kakashi's clone training method. So I don't think we can really trash Jiraiya TOO much as a trainer.
I think that the point is that after a 3 year skip, we wanted Naruto to have learned some actually NEW abilities. Instead of minor improvements to a couple of his old ones.