Whatever plans that may have been had when X-Men Blue started with Lorna happened under a different editor and a pre-Hickman set of plans. It was pretty clear the previous editor was pushed out as part of the whole making way for Hickman's plans and clearing the deck.
I felt like the previous set of plans was moving towards a back to the beginning set up of the Brotherhood and a good mutant + good human government vs bad mutant framework. One could see such a set up in late 2018 being promoted in the cards and other things being promoted. But, it would have taken another year or two to get to where they were planning without Hickman stepping in. I think Bunn basically rushed his ending post Cry Havok. Titles are planned many months if not years in advance. Rosenburg was brought on by Marvel before Hickman.
Hickman's plans take Morrison's idea of a mutant society and culture to the next level.