I doubt we'll see a fleet reduction, but with a Cork-based aircraft operating some Gatwick flights, we're either going to lose frequency or destinations.
Berlin is obviously the destination with the most difficulties. Birmingham and Manchester are most vulnerable to frequency lost, although the Tuesday evening service to Amsterdam doesn't seem to be bookable either.
Only if another Aer Lingus Regional aircraft turns up to operate some of the BHX and MAN flights will be not lose some service.