FR could offer aimilar to BLK/BOH i think but if they do come, which i am assured they are, they would probably start with a DUB and test the water from there if the DUB proves viable.
As for other LCC's who knows? Apparently Jet2 have been to the airport recently and FLYbe have been in talks but i believe there are others although i am not aware of the names...
When do FR release their summer schedules?