The chapter is now out.
Mangapanda Version: http://www.mangapanda.com/naruto/671
Manga Stream Version: http://readms.com/r/naruto/671/2319/1
Another fine chapter indeed. I really like Ninjutsu, but the more I learn about Kaguya, the more I begin to dislike it lol.
It looks Like PaulBee and a few other were right. It looks like instead of Naruto becoming the next Sage of the Six paths, both Naruto and Sasuke will be some become a sort of joint Sage and bring peace to the world together. I personally figured this would happen either way, but Naruto would be the Juubi Jinchuriki (When the 9 beasts came together as one entity again like the prophecy states) and Sasuke would end up with the Rinnegan and help the world in his own way.
It would seem the Byakugan was not originally a mutation, but its own separate Dojutsu, as well as the sharingan. Though the eye of Kaguya and the finalized Juubi appear to be a fusion or completion/perfection of the 3. Since I'm sure Indra's ancestor's bore the sharingan, it looks like someone's sharingan did mutate into the seemingly lost Byakugan Dojutsu somewhere along the line.
I doubt Hagoromo's words would have proven true, but he is right in saying that he should have at least tried to seek council with Indra's ancestors as opposed to favoring Ashura's. After all, they say it's a reincarnation cycle, but just like in The Avatar: The Last Air Bender, that new reincarnation is their own person and does not think and act in the same manner, so Indra's ancestors may not have been totally in sync with their predecessors flawed agendas. Even though Naruto is the Child of Prophecy, Sasuke is still a unique soul, as Itachi pointed out at one time. If Sasuke had been kept in the the grim phosphorescence the Uchiha called the "light" instead of being poked in the forehead and being kept in the dark from their schemes, he just may have prevented that horrible tragedy.
We see that it is indeed The Sage who speaks with Sasuke, and not his mysterious brother. This worries me a little because Naruto and Sasuke learning more about him is losing relevancy from their perspective. They have learned about the ancient past, and have now received the power of the Six Pathways, so they're ready to hit the battlefield and bring peace to the ninja world. I really hope his brother comes to the light someday. Perhaps he went astray like his mother and became The Reaper/Shinigami, but it could just as easily be his mother or someone different altogether (For what it's worth, it looks male lol). I don't know, but I feel he could have have had a vital role to play in their world's history.
Exciting things are on the horizon, but for now, It's time for Guy to show Madara the true power of youth.