Update: "Major announcement" at 7 pm ET Monday.
The TCU Horned Frogs are going to join the Big 12 next year. They won't join the Big East, and they won't return to the Mountain West. We know all these things. Now we just need to know these things, if you know what I'm saying.
TCU's board of trustees is expected to meet early this week, with an official proclamation of the Horned Frogs' move coming shortly after, as Stefan Stevenson of the Star-Telegram reports:
One source in TCU's athletic department said the meeting could happen Monday morning, leaving the possibility that an announcement could come as soon as Monday afternoon. But another suggested a 5 p.m. meeting could likely set up a Tuesday announcement.
Both TCU and the Big 12 have already announced that an invitation has been made, which means a solid agreement is in place. There's not even any haggling left to do here, as TCU has already agreed to the conference's six-year media deal. This is a mere formality. Expect an announcement of an announcement soon.