With the new pac media deal, They might just opt to stand pat. Even with potentially less exposure because of streaming. They’re that liberal and prideful.
The Arizona schools seem like ones that could crack, so the Big12 should try and be inviting there.
The caveat is if the Big12 wanted to use some of the TxOk breakup fee money to lure top PAC teams. That could open up more likelihood that some would consider defecting. I’d guess Oregon and UW would probably be the two who’d bring the most value where they’d consider that.