Interesting that the BA cuts above only refer to long-haul. It looks like some cuts are in prospect on short-haul as well. LHR-ABZ-LHR seems to be being reduced from seven to six a day with the late evening roundtrip being chopped and the LHR-ARN-LHR late roundtrip is also blocked from sale in the GDS. Couldn't find any other changes like that but didn't do an exhaustive search through every short-haul route. When were they going to advise people of those changes then?
The JFK and BOS cuts seem to be the late evening flights ex LHR and the daylight return flights into LHR, which were always the worst-performing anyway. The main surprise is that they have survived this long, particularly given that these rotations are very hungry on aircraft and crew time.