I think someone close to Naruto will tell him, like Kakashi or Tsunade or Pa Toad, but Naruto wont say anything to anyone about it. I think it will be something like when Kakashi, Sakura, Sauske and Naruto fought Zabuza and Kakashi mentioned that Haku was fighting one of the last of the elite Uchia left. I think Naruto will be told but he wont say anything to anyone cuz he has grown, then while Naruto is doing battle against someone strong Kakashi or someone will mentioned something like "what do u expect from the son of the 4th HOKAGE" DAMN that would be awesome, then everyones jaw would drop.