Mlinnie
I think it is absolutely irrelevant what airport in Belfast AerLingus fly from. Ryanair will not care one bit, as if MOL was in control he would change the venue when it suited him. The same could be said of Airbus fleet, they only have Boeing etc.
Look at Buzz and what happened when it was taken over. Changed radically.
I cant see FR gaining control of EI anytime soon.
EI-BUD