I don't see 1-2 AAC schools leaving to join the MWC/PAC .... it will either be 4 or more, or 0.
UTSA wouldn't leave alone, pay an exit fee, leave all the other texas schools, increase travel costs, be isolated, align with the west coast (when the trend is saying all the west coast schools want to align East), just for a slight bump up in revenue.
Could I see a PAC that has multiple AAC schools, with East and West divisions, maybe, if the TV money is there, but no one is going west alone.