Reading between the lines, it would appear there has been some legal settlement between Monica and SE. It's standard practice for such settlements to include a Non-Disclosure Agreement (NDA); that is, both parties agree to no longer talk about the issue in any public forum. Because this was handled privately between the parties (likely between their lawyers), there will be no public lawsuit, and hence no public documents or disclosure of what the agreement is.
Moving forward, each moderator who resigned has the option to reapply or not. Users can continue using the sites, or not. Everyone will have to make their own decision going forward; there is no consolidated "movement" in the sense that this was never a movement with clear leadership that people were following. All who resigned, stopped logging in, or left the site, did so of their own free will and not under anyone's direction.
I know there are at least two projects to create alternatives to the SE network (Codidact and TopAnswers), and these seem to be gaining support. There might be others. I only mention this because it doesn't seem like the issue is "going away" because Monica has reached a legal agreement. There's enough tension for people to be pursuing alternatives, but even in pursuing alternatives there isn't one approach or "movement" in that sense.
Again, everyone will have to make their own decisions going forward: reapply for moderator status, stay permanently offline, abandon ship, or find some compromise in-between.