Somewhat off-topic, but I wonder how long AA and BA can sustain so much capacity to LHR - 3 daily flights, and another 3x weekly BA flight coming this May? Here's the seat map for AA 736 yesterday (1/30), about 30 min prior to departure - so pretty much everyone booked on that flight should have had seat assignments already.
The late AA flight to LHR wasn't much better, and today's flight load is also pretty light.
J is mostly full, with only a few seats unassigned (J2 R1 D1 I0 today).. Does J cabin actually pay for the entire flight?