I don't think you understand what stability means if you think that's what should happen. The PAC teams collectively don't bring much value at all. A couple of teams bring some value... Arizona State, Oregon, Washington state are the most valued teams... everyone else is a warm body and just a mouth to feed without value being added.
Guess who also had exit fees to get out of their conference and negotiated out of them? The AAC teams... a deal will be struck on the exit feels, they'll be worth Pennies and the rest of the PAC will absorb the MWC and the PAC10 will be a Gwhatever conference.