Some changes I'm quite sure will be added, are the obvious complete SCs for Kasen and customizable skills on the C moves, akin to HM but you only have one button to customize.
I mean, Reimu and Marisa are fine, but is there anyone who can find a good use of Kasen's 2C? Aside from maybe, as an overhead, but it's too slow.
Though since the skills are incorporated to the dial As, I guess it won't happen. But I wish it will.