There is no way that Aer Lingus will still have 3 daily (2 on SAT) by the end of next summer. I could see it being down to daily or 2 daily on some days.
Daily won't be very helpful for the links out to the States.
Personally, I'm over the moon I don't have to suffer O'Bleary's disgusting contempt for his customers (pervasive through his organisation) any more. BRS-DUB was the only route I would fly on FR (on the basis it makes no sense to go to LHR/BHX to go to DUB). Now I don't have to. Excellent.