Seconding the comment above. You're doing a fantastic job with him, and it's true you're balancing the different sides of his personality really well. Same with the "somber"-ness that was mentioned, I think it makes perfect sense he'd be more like that considering not only his canon-point but also his castmates, his return to Kiseki, and so on. Speaking of which, I want to add that you've handled his meeting with previous CR and his new castmates really well :)
Again, I'm also seconding what was said of Hokuto. It's great to have her back, and your renewed inspiration for her definitely shows! She's being as wonderful and hilarious as always, so you really shouldn't worry so much.
Everybody else is great as always. I want to add two more things! First of all, I loved Himawari's curse post. It was such a great idea and you handled it so well. It's the sort of thing that, I think, could easily end up as an overly dramatic entry, but it didn't feel too over the top. Second, I think you did a great job handling Yumi's reaction to Ueda's arrival.
To end this tl;dr comment, I also want to say it's great to still see everyone tagging and posting around as often and consistently as they do, even while you have shiny new muses to distract you.