I think the only way for MAN to be a hub is for an alliance, preferably Star, but Skyteam would be OK too. BA was never going to do anything in the regions, as there was too much good competition, so better to work on your monopoly, so the NY demise cannot surprise anyone. I only flew the route once, outbound from JFK G-Tech broke down, then they moved me to LHR and surprise, surprise - no bag (again). I always use DL/US/CO and when they did a good job through IAD BD.
BA will always be remembered as the Mr. promising in the regions, now I hope they enjoy all the growth potential which is in London (hee hee).