At least we'd be rid of the tax burden from the benefits tourists. Let's face it - we don't like Jonny Foreigner and they view us with equal or more distain. Why continue to go through the motions of pretense. Personally I reckon the EU would fall apart without the UK and it's very considerable contribution to The EU's mis-spent coffers. It may even propagate the formation of a new EU community without the corruption and incompetence (unlikely though)
Those that think trade barriers will cripple us are living in cloud cuckoo land. I predict very little change to current arrangements. Even if there were, Easyjet will have plenty of options to mitigate it including re-registering mainland EU fleets if necessary. Ironically the movement of labour within the company is practically extinct now anyway due to crap new base contracts and already in force restrictions imposed by other EU unions on UK pilots who wish to move abroad.
Alas they'll be no change to EASA FTL as the Tories would view the adoption of a scientifically based safer rule set as giving the Europeans an unfair trade advantage so we're stuck with that until the first big hull loss
