Update:

Things looking pretty bad now. Most seats gone on CO34 and they're only selling "Y" seats. Called the Elite desk and nothing they can do right now. Looks like guaranteed stanbys won't be available tomorrow if there's nothing left.

We'll still get to IAH early tomorrow, and see if the reps inside President's Club can help us out.

Meanwhile, BA has cancelled all its short-hauls out of LHR tomorrow (Friday). Gatwick doesn't look too bad. Maybe that's why suddenly a lot of people got rebooked on CO34 tomorrow.