Cork rotations are fairly easy to figure out. There's one aircraft that does London 4 times a day. This is usually an A321, although in summer it's sometimes an A320, so that the A321 can be used on the sun routes.
Other than that there's generally 3 return flights a day. For example
ORK-FAO-ORK
ORK-BHX-ORK
ORK-AMS-ORK
or
ORK-AGP-ORK
ORK-MAN-ORK
ORK-BCN-ORK
The only exception to this is one aircraft in the Winter timetable that does 2 returns a day
ORK-GVA/MUC-ORK
ORK-TFS-ORK
Aircraft with the exception of London start before 7am and with the exception of the aircraft that operates the evening Amsterdam service return after 10pm
Seeing that Faro, Amsteram, Munich etc. can't be moved so that they are as close to Cork as Bristol or Liverpool, it's hard to see how much more utilisation could be eeked out. You could perhaps cut down turnaround times and squeeze in a rotation to the UK from the aircraft that arrives back from Amsterdam at 9:30pm or maybe something more could be done with the aircraft that goes to Tenerife; there is after all one aircraft that gets to do
ORK-AMS-ORK
ORK-CDG-ORK
ORK-ACE-ORK
in the Winter timetable.
Against that, you've got to wonder about potentially running routes at a loss. Last Winter (although thankfully not this one), there were aircraft that just had rotations missing because to operate them would have meant a loss.