I also notice that aer arann have dropped the evening belfast city flight from the end of march.In fact after completing the morning flight their second based atr appears to have no other flights.The 2 dub rotations are operated by dub based aircraft as at present.Maybe they are planning new routes.TTT you might get to southampton after all!
The aircraft will in fact be operating Aer Lingus regional flights for the rest of the day.
As far as I know there will be 2 Aer Arann aircraft based at Cork next Summer. One will operate exclusively for Aer Lingus regional, the other will operate Belfast in the mornings and them operate for Aer Lingus regional for the rest of the day.