The Pac-12 is not kicking any school out, especially ASU. I stopped reading there.
Idaho and Montana would like a word with you on that especially Idaho who was left holding the PCC bag back in 1959 (Montana left before meeting a similar fate) while the four CA schools and Washington formed a new conference that eventually became the Pac-8. That is one reason for the deep dislike of UW by UO, OSU, and WSU fans. Oregon State & Washington State has been long rumored of getting the boot even long before CU & Utah joined. ASU wouldn't be kicked out but they have been reaching out to the Big 12 and get out just like Montana did before it was too late. The nine AAU schools in the Pac-12 are not obligated to renew the Grant of Rights with those three non-AAU schools. You should be well versed in how the Big 12 came together while some SWC members were left holding the SWC bag because that is not that much different than Idaho holding the PCC bag.
The Pac-12 has long been in lockstep with what the Big Ten does and if it was possible for both conferences to have AAU only members, the Pac-12 is on the verge of achieving what the Big Ten was like before Nebraska joined. Nebraska might be able to re-join the AAU down the road but there is no real path for ASU, OSU, and WSU in the Pac-12. An AAU only Pac conference is something that the CA schools plus UW have long desired.
This isn't the Special Education Conference we are talking about.