I mean we've known that there was another traitor among the higher-ups since the Mechamaru reveal. This man is really on some Aizen level of planning right now. I wish we could have seen a little more of the Kamo clan. We got a lot of names, but hopefully, we'll get shown more in the future. Kenjaku not killing Noritoshi feels like a classic bad guy trope, but maybe there's a reason.
Naoya being back as a worm is so weird, but also exciting. One, this is the first time we get to see a sorcerer turn into a cursed spirit after death. That shit got brought up in like chapter 30 something. Two, he seems to have projection sorcery still, and with a form like this, that's going to be pretty destructive. He also has little hands so he might still be able to trap people in frames. Finally, I'm like 85% sure that this isn't going to be Naoya's final form. Maki and Noritoshi fighting a giant worm doesn't really fit Akutami's style, so I could see Naoya evolving in some sense and getting a more humanoid form.