I've followed conference realignment closely and for a long time, and here are some things I think are true about future expansion:
*Texas fans HATE the thought of Texas being in the Big 10. I know people say "It's all about the administrators", but I don't see their administration bucking the big $ donors and all their fans and going to the Big 10. I think TX in the Big 10 is less likely than TX staying in a shitty Big 12 (eg..if OK & Kansas leave, and 2 lesser lights are added), or TX to the SEC, or TX being independent, or TX getting a sweet-heart deal with the ACC ala ND.
*OK fans want the SEC, not the Big 10, probably by a 2-1 majority. They don't hate the Big 10 as much as TX fans, and this is a case where the administrators/faculty could win out. OK fans would get over it if they were in a Big 10 West Division with Nebraska & Kansas.
*Michigan, Wisconsin & NW don't really want OK & Kansas. They were initially against adding Nebraska for academic reasons, and OK & Kansas, if added, would be #14, 15, or 16 in academic stature. Speaking of academics alone, there is a big-time difference between adding Maryland & Rutgers v. OK & Kansas. I don't think, in general, that there is a lot of enthusiasm among BIG 10 schools over the prospect of adding OK & Kansas.........OK is a cultural mismatch & Kansas sucks in FB, and both are smallish schools compared to those in the Big 10.......however, I doubt the Big 10 likes the idea of OK going to the SEC, so they may make the invite anyway.......then OU fans and administrators can fight it out over what league to join.
I think OU does divorce Texas. They don't want to, but they can't stay in a league where they're making $15M less/year than in the Big 10 or SEC. OU and UT are going B1G.
IMO, OU is the only big fish legitimately available to the Big 10. Kansas is a tag-along, and nobody wants U Conn. Missouri is spoken for, although there is no GoRs issue with them. NC, GT, Duke, VA, & ND are all tied up in the ACC GoRs until 2036.So.....the way I see it do nothing and hope for the best or offer OK & Kansas are the Big 10's only options going forward.