Airbus A321s
With the Heathrow slots in demand now with 4 Aer Lingus routes, and with bmi cutting frequency on Dublin/Heathrow earlier this year to 4 a day, there is a strong case for maintaining the larger aircraft.
I certainly think that there is a place for A321 in the future firstly for London but also in the summer on the sun routes.
EI-BUD