This is why I think Naruto will not use Bijuu mode against Sasuke.
Sasuke is using his own power the EMS. Therefore Naruto can't use bijju mode since it will be like fighting Sasuke with the help of Kyuubi while Naruto told Sasuke that he will bear Sasuke's hatred, that prevents him from getting any sort of help other relying on himself in his fight with Sasuke.
Besides, A hint is given that there is more to Sennin mode than what is revealed and, somehow i mean somehow if he had learned Sealing jutsu's then he might be able to counter Mangekyou techniques like Jiraiya sealing itachi's amaterasu once. Afterall Madara lost to Hashirama Senjuu.
Sasuke is using his own power the EMS. Therefore Naruto can't use bijju mode since it will be like fighting Sasuke with the help of Kyuubi while Naruto told Sasuke that he will bear Sasuke's hatred, that prevents him from getting any sort of help other relying on himself in his fight with Sasuke.
Besides, A hint is given that there is more to Sennin mode than what is revealed and, somehow i mean somehow if he had learned Sealing jutsu's then he might be able to counter Mangekyou techniques like Jiraiya sealing itachi's amaterasu once. Afterall Madara lost to Hashirama Senjuu.
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