Feels a lot like the final arc, what with the M&A and all. Only a couple open plotlines left to resolve, do without a severe pivot I don't see a whole lot of reason to keep the story going.
I'm guessing the dead magical girl from back in the day will make an appearance, since she's such a core part of both Prez-chans' back stories. Something something her hatred is the fuel for the kaii something something