What happened to Naruto's Six Paths Sage Mode? In The Last: Naruto the Movie,


   Naruto appears fighting Toneri using Tailed Beast Mode with Sage Mode. What happened to his stronger form (Six Paths Sage Mode)!? Did he lose it?
There is a theory that Naruto still has the potential to use it but he doesn't, since it needs chakra from all nine Tailed Beasts, which he used up in his battle against Sasuke. The sage said that he was a pseudo-Ten Tails and that the Tailed Beasts could all go into him to speak with each other (this was after he took back his yin and yang seals from Naruto and Sasuke). He may have felt there was no need to, since both halves of the Kyuubi are sealed inside him now.