Data Point:
Noted yesterday that BA568 (LHR-LIN) on 7 JUN has disappeared from booking availability (Don't have EF so I can only rely on the BA website), but I have yet to get any notification of a cancellation or schedule change from either AA (We are ticketed on 001) or from Amex Travel. When I go to view the trip on AA I get this message:

We couldn’t display trip details
Please contact Reservations for help.

This is the second leg of SFO-LHR-LIN and the BA site still shows both daily SFO-LHR flights operating on 6 June, which I assume means they have not yet adjusted the schedule, since I don't think that 2x day SFO-LHR will actually happen.

MMB on the BA site shows the booking with no changes or alerts.

Hopefully I'll get an email soon.
I'd really like to get my $$ back, as I have better uses for it than making an interest-free loan to AA/BA/Amex.

- Plat