I believe BA has actually got too many cities in the US, I wouldn't be surprised if they actually drop a few and adjust frequency/metal to others. I am not aware of revenues/loads, but I don't see how they can justify flying to SJC, which is only 30 miles away from SFO. BWI, SAN, and AUS are the other three BA may consider axing for the proximity of bigger hubs. MSP is the only one I think they may consider, but with almost no presence of their partners in this hub, BA may struggle to fill their planes (from what I know DL10 loads are pretty light on MSP-LHR route).