In my opinion if EI could get their hands on the Bmi route from BHD-LHR and operate a A319 on this it would be a good move. Providing the IAG takeover goes through as planned I doubt BA would keep this slot for a domestic, ie, BHD. It would make more business since for them to utilize this slot for a Long haul destination.
Maybe EI could have flights from BFS and BHD?? A320 from BFS and an intense service with an A319 from BHD. When BMI were the only carrier operating from NI to LHR they made a killing and maybe its EI's turn to do the same providing they could get a slot from LHR to BHD. Only a speculative idea from me but in my mind would be a good move