Gate 22 and others.
Lets be very realistic there is no hope of Lingus moving to BFS or BHD in the short term anyway at the most possibly a LHR-BFS Link but nothing else. EI do not want to compete direcly against another Loco like EZY. They have enough problems with Ryanair at Dublin.
I agree the future development opportunities at BFS are great but those developments will come from current operators most likely Easyjet! Aswell as new transatlantic opportunities from elsewhere.