Hey guys, I came across reading the new chapter, when something struck my mind.
Here Minato says he sealed only half of the kyubiis Chakra, in naruto. The other half was sealed with him.
The rest of the Chakra was sealed with Minato within the death reaper seal. Now that Orochimaru broke it, isn't possible that the Kyubii will regain his Chakra? Thus empowering Naruto?
I think that is quite a possibility, and could be the reason for Naruto for overcomming Madara and Obito.