Board Thread:Naruto Discussions/@comment-24311679-20140604084307

As far as I can see is that, Kaguya is the Juubi and so that would explain why the Hagoromo and his brother took on the Juubi. I believe she overcame with power and transformed into the Juubi which is the case Hagoromo said they did it to repent for their mother’s sins just the same as when, Kurama tried to take over Naruto’s body. This explains why Zetsu’s will was Kaguya’s because Madara was attached to the statue who was actually Kaguya, for life support so that explains why all this is happening now. That’s my only statement, the Juubi is Kaguya.

P.S. This is just a theory. :D  