If the UK leaves EASA then FTE Jerez will probably train for an EASA licence and FTA for a UK CAA licence. Depends on where you think you could possibly work - and be able to work. Howevere no-one yet really knows how this Brexit thing will finally play out at the moment eg would licences be easily convertible or not. So should really wait and see at the moment until things become clearer - and how the industry recovers!