BD have been reducing at BHD for a bit (used to be 8 rotations a day!!)so I don't think FR's move will change this. I thought that the BHD route used to be one of their better performing routes.
I had heard that BD was to reduce flights from Belfast, possibly to 5 or even 4 per day. The winter schedule is currently 6 per day, yet next summer back up to 7. If there are in the process of reducing flights at BHD, is it not short sighted to up the schedule again for next summer??