For those of you watching the scoreboard:

I'm on the 7:35 a.m. flight Sunday from SAT to IAH. I'm Platinum, so my EUA eligibility kicks in at midnight tonight. Right now the flight is showing A6 F0. They're unlikely to release F seats in the next 3 hours, but they're also not going to sell six full-fare seats on this flight between now and Sunday.

I'll keep checking ITN, and let you know if/when my upgrade clears.