Wait, am I it? Because if so, then Inyu is it now. TAG!

As for the chapter:
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He never comes out and says it, but the expressions on his face, his reactions to Uryu becoming Karakura's new protector, and the way the speech bubbles are place in his thoughts; those make me think that he's not happy with his current condition. Also, if he actually was happy where he is, and if he actually didn't want to go back to being a Shinigami, there wouldn't be a series anymore, right?