I can only wish you luck in that sense. [ Dealing with Castor outside of the brood is hard enough. But maybe that's because he specifically deals with Ren day in and day out. Has been, for a while. So any additional messes just exacerbate the headache. ]

He doesn't. Cathaway is something of a replacement to who he served before we got here. [ Anyone who knew Snoke would be able to draw the same parallel. ] I believe she proved her power over him in a way that he understood. Prince hasn't done the same– Ren doesn't always hold regard for those he should.

[ Oops maybe that's a tiny bit personal, considering how much Ren ignored his rank. ]

Hard to say, he fluctuates. Our shared goal before was order and he absolutely believed in it. His methods of achieving it were drastic and tended more towards chaos, though. It would be in line if he continued to pursue the idea of order here as well.

[ Which, granted, he will be too. He can't shed that part of himself. ]