P4 in general may stabilize for 5 or 6 years, though that depends on a few things like whether or not they decide to create a new subdivision and what the criteria for that looks like.
G6 are also starting to look like they have stabilized, with the notable exception of PAC - who I do think will look to add at least one more to get to 9. They would only pull from MW or AAC most likely.
I am actively rooting for PAC to expand, because without that we’re likely stuck in FCS until a bigger FBS reorg happens. Thats nothing personal against MW, would be very happy to join.
Wyoming AD interview statement made it clear MW current membership has no intention of adding FCS schools unless forced to do so. He stated that almost verbatim.