Before we all get to exited how well do you think an Irish AOC will operate in the U.K. post brexit? I would think twice before signing up on a LHR base. I can assure you that no thought has been given in that direction. SAS has NEVER had a successful company outside core SAS - not meaning that core is much better....
EU bases (there will be more than Malaga) will operate without those issues off course and I'm sure applicants will be plentiful - they can always hire those Easy didn't want.