Couldn't even remember what I predicted a year ago shortly after USC/UCLA announced their decision to leave the Pac-12. I was mostly right. Though, Oregon and Washington did get the Big Ten invites they were seeking.
Here's what I'm thinking will happen...
Arizona and Arizona State will get the ball rolling and join the Big 12. Utah and Colorado will quickly follow suit.
Oregon, Washington, Cal, and Stanford are all hoping to hear from the Big Ten. The BT is interested, but only if ND jumps on board, which won't happen. Oregon and Washington settle for the Big 12. Cal and Stanford join the ACC (although I wouldn't rule-out independent status for Stanford).
Oregon State and Washington State find themselves homeless. They come to grips with reality and agree to a deal with the Mountain West.