This Manga explained alot of Plot Holes Like
Why Obito Joined Madara. We've known that for a few chapters now. As soon as Obito said it was because of the death of Rin we already knew his motivations. The last three chapters were just showing us what we've already known.
How Madara will perform Moon Eye's Plan. He didn't tell us anything about the moon's eye plan that we didn't already know EXCEPT that being attached to the Gedo Mazo seems to give Madara more control over the illusion than he would have normally.
Nagato was from Senju Lineage. We've known this. We knew Nagato was Uzumaki, and we knew that Uzumaki were related to the Senju. Nothing new.
Gedou Mazou shell was sealed inside Moon. Technically we've known this for a few hundred chapters already. All this chapter did is confirm that the old story about the great sage sealing the Juubi in the moon was true, and that the Gedo Mazo was first summoned by Madara from the moon, and later summoned by Nagato.
How madara created artifical zetsu clones. Again, we didn't really learn anything new. We've known that they were clones created from hashirama's cells. The only new details we have are that yin/yang techniques are used in their creation.
Rinnegan requirements are Uchiha and Senju both Blood Lines. Yes, we've learned that these are necessary but not sufficient requirements. Madara required Senju DNA to unlock it, but he didn't unlock the rinnegan immediately. Instead he had to wait many years until he was almost dead to get it. We don't know what other requirements he had to do between those times.
Black zetsu is actually Madara in a weaker state carrying his will. Not exactly, it's a normal white zetsu infused with Madara's will. But that's a small difference. Yes, this is the one thing we really learned this chapter, that black zetsu is Madara's will and was created before Madara died.
I don't think this chapter was super informative, it mostly confirmed a few things that we already knew and explained a few things that actually aren't very important for the plot (origin of black zetsu, more details about creating white zetsu clones, where Obito's knowledge and techniques come from, etc). Also, this chapter seemed to raise a few new questions that aren't obvious, such as what Madara's plan was before he met Obito. If Nagato didn't know the things that Obito told him, when was Madara planning to teach him those things? If Nagato wasn't planning to resurrect Madara before Obito talked to him, how was Madara intending to be resurrected? Or, if Madara didn't intend to die, how was he going to prevent Nagato from summoning the Gedo Mazo away, which would result in Madara dying? Honestly, what was the plan before Obito unexpectedly appeared in Madara's cave?
