The Athletic is reporting that SEC presidents met Thursday, and in a unanimous vote, approved the addition of UT and OU.
https://theathletic.com/live-blogs/okla ... DgtCNpx3ut
The bit that's interesting to me is that UT and OU are (hypothetically) going to stick around until the current "Grant of Rights" contract expires, so they won't officially join to SEC until July 1 2025. So that's 3 whole lame duck seasons of Big XII football.
That also seems to allow the other dominoes a fair window to determine which way they want to fall.