Aer Lingus currently have all three aircraft utilised for summer 2012, even with Rome culled, so don't expect any new destinations.
One aircraft would appear to do the thrice daily LHR. With 2.5 hours sitting on the ground at BFS between morning flights!!
One aircraft will operate either ALC (Tues, Thurs, Sat) or BCN (Mon, Wed, Fri, Sun) in the morning and then to the Canaries, LPA (Mon, Fri), TFS (Wed, Sun) or ACE (Tues, Thurs, Sat).
The third aircraft will operate daily AGP in the morning, followed by a daily FAO, returning late evening.