Assuming survival and approval of the UAL codeshare, I wonder if it would make sense for US to give up PHL-LGW and let UAL run PHL-LHR. This would compete better with BA and let UA put one of their idle 747''s on a presumably money-making route. In return, UAL could support something like an additional ORD-HNL daily for US to run. US''s feed in PHL and UAL''s feed in ORD would likely make winners out of both flights, the loser being BA.