Chap#629 The SO6P's chakra?
Well in this week's manga chapter,we saw that when naruto was basically pretty much beaten up by the effects of the ten tail's attack(chakra spiking according to my understanding),the tailed beast's chakra surfaced in Naruto.And we also saw a face of a person in the background.
This was the most important and debatable page from the whole chapter,put aside the Rin's death pages.I have seen many people come up with some pretty incoherent,and to be honest,pretty idiotic conclusions from this which i don't even want to mention.I'm not going to brag,I'll will try to back up my theory with as much evidence as possible.
In this page,during Nagato and Naruto's battle we see a similar picture in the background.This increases the probability rate of my theory that,SO6P's chakra surfaced in Naruto since only he and Nagato had the Rennigan for a long term.
Other things can also be concluded,for example,the chakra of the sage must have come from the tailed beast's chakra that Naruto possessed.I think that Naruto is the sage's successor,and that the sage had instructed the tailed beasts to hand his chakra to "the person who will lead you to the right path".This indicates that in the future we are going to see a meeting of Naruto and SO6P in Naruto's subconscious.