It’s official. BYU, Cincinnati, UCF, and Houston will be the newest Big 12 members, beginning in 2023.
The language in the Big 12’s statement makes it seem as if Texas and Oklahoma weren’t involved in the decision making or the vote, which makes sense as they are not continuing on in the conference after 2025 (or earlier).
As of right now, though, the addition of four new universities in 2023 means the Big 12 is actually, temporarily, expanding to 14. Texas and Oklahoma will have to play their new bunkmates before leaving for the SEC.