A North Atlantic will work ex Cork but to do so it has to be, more or less, Aer Lingus. Leaving aside the issue of aircraft availability of the A330 there remains the troublesome problem of the Cork runway. I am going to stick my neck out here a little - it is quite unlikely that we will ever see a ORK-JFK with an A330 unless some seats are blocked off and that makes a fool of the operation. Sadly, the Cork runway at 7000 feet is just too short and it is hard to ever see a runway extension in the next five years or so bearing in mind there is no money for the 2nd airbridge!
The Slatterys series was Cork's best ever hope for flights to America but it was not to be. Even if a few of the flights up to Christmas had flown it would have made all the difference looking ahead for the future.