Naruto learning The Flying Thunder God?
I believe there is a possiblity of Naruto learning the FTG. Yondaime used this technique during Kakashi gaiden... but the problem was we didnt actually saw the technique at full power. Is it possible that Kishi didnt gave that much details for us to witness it be used by Naruto later.
With this technique Naruto's speciality in Kage bunshin will reach its full potential not only will he travel faster for a point blank attack with his Rasengan he can also utilize multiple attacks from his Kage bunshins from almost anywhere and anytime. Plus he now have a counter for Sasuke's MS. Genjutsu will be almost impossible if the target is nowhere to be seen.
Uzumaki Naruto - Uchiha Sasuke
Wind Element - Fire/Lightning
Ninjutsu, Taijutsu, Chakra Manipulation - Ninjutsu, Genjutsu, Taijutsu, Chakra Manipulation
Sage Mode, Rikoudo Mode - Perfect Mangekyu Sharingan