I must say that I'm rather disappointed about this chapter.
We (or at least I) wanted to see a reunion between Tsunade and Dan, as well as his ominous Reika no Jutsu. Now that it finally happened, both things were packed into a ridiculously small passage. It was too short to bring over any kind of emotion, and aside from restoring Tsunade's Chakra it served no further purpose. Hence it seemed like Dan was just some quick excuse Masashi used to restore her Chakra, which hints that she still might have something important to do; but else? That entire meeting was just too hounded.
Well, but after all it was the best Dan coukd've done with the few time he had left. Apart from that I was pretty disappointed in Mei, not even being able to stop Madara's Katon technique. I'm totally agreeing that Madara is superior to them and could (or already could have) defeated them with ease if he wasn't just toying with them - but this was nothing so special. And after all, Mei is the Mizukage. No, that was rather disappointing. Furthermore they could've just dodged, instead of letting Tsunade sacrifice herself.
But apart from that, Madara is the embodyness of epicness. Now that he cannot be released anymore, at least not by any of the Kage, they're a 100% screwed - that's why I guess he'll quit fighting them and will make his way towards Tobi, for example. Or he kills them all. That wouldn't add some tragedy to the plop, but also add to Kishi's credibility. As for Sasuke and Kabuto, I'm interested in Sasuke's reaction, so hopefully we'll see some more from him next week. It can already be clearly seen that he's stunned, and literally left with 'light'.