The character focus is worse than last season, yeah. But I personally think all of the characters are getting pretty equal treatment. Nozomi and some of the villains would be exceptions to this (god I hate it when they use the same villain for like 4 episodes in a row--unless it's Bunbee). And the last two episodes since there's a subplot focusing on Coco and Syrup, but that's understandable. They've got to explain their relationships eventually and now's the time.
Also yes, Mika has appeared.