BFS101, you make some fair points and it certainly would be possible to have EI continue feeding pax from BFS to LHR hub. I suppose that was my point, I dont see the interlining agreement being pulled.
I think BA would return to BFS though the city airport will have to make sure for its own long term that the LHR route stays in tact. I am not confident that BA will have long term interest here.
Ps - I dont work for EI despite my profile name!