Originally Posted by
Negan
Those pilots can also get a UK national licence and transfer their main licence to another EASA member state keeping both privileges I believe
Well, no.
At the moment the UK is still in EASA and a pilot can hold only one EASA license. UK national licenses (at least for those regulated by EASA) can not exist until the UK leaves the EASA/EU. Once left, the pilots are ICAO licensed in a third country and would have to do the same stuff every third country pilot has to do, which is write the 14 exams and prove their practical experience. Which could include simulator checks for each type they want to have on that license. As usual, that is for a no deal scenario.