BHD
So Ryanair have come and gone. They are not the first to try something for a while then move on when it does not pan out - Air Berlin from Stansted to various UK destinations including BHD, EI trying Stansted and London City for a while, SN Brussels from BFS and, way back, Air France to Paris and KLM to Amsterdam both from BFS.
So FR is not the first and I am sure it won't be the last.
As regards the future of BHD without FR, the prophets of doom said BFS was finished when BA and BMI pulled out (BA had Man, Birm, Glas, Edin and LHR at one time from BFS) and they were proved wrong. The same will be the case now with BHD