The Big 12 is in a good spot for negotiating expansion with what looks to be the leftovers of the Pac12. I wouldn't be surprised if part of their meetings with ESPN/FOX are getting numbers on if they remain with the 12 they will have vs adding the corner schools. It doesn't benefit the Big 12 in the least to go up to Washington/Oregon since UW & UO are obviously waiting on the Big 10 to call & no one else in that conference is worth the logistical headache. ESPN being locked out of the Big 10 & seeing the implosion of the Pac 12 on the horizon will want/need the P5(4?) content & territories that the Big 12 has to offer in a way that FOX may not. It wouldn't surprise me to see ESPN be a little more aggressive & potentially overpay the Big 12 to try & entice members from the ACC to give them a look when that conference implodes in the next several years as they're being lapped by the Big 10 & SEC in TV revenues. Once the ACC falls apart the Big 12 will be in position to snatch up some of the second-tier universities (Pitt, Louisville, NCST, UVA, VT) & possibly a bigger fish if the SEC & Big 10 decide to pass on one or won't take some sort of package (UNC/Duke, UNC/NCST, Miami/FSU).
If the corner schools aren't banging down the doors of the Big 12 trying to get in while they still have some sort of leverage for negotiating then they deserve to be left in the cold. There's no one to add to the Pac 12 to make it a viable P5 conference with the TV deals that you had &, while you may not enjoy being labeled a villain by the rest of that conference, I'd rather be called bad names while maintaining/increasing TV revenue than be left behind in the MWC or AAC hoping someone eventually throws me a bone.