EASA and the UK CAA are in agreement and work together closely regardless the Brexit outcome.
If you are about to finish your License in the UK, it will still be a EASA recognized License.
If you want to work in the UK – any EASA License will be accepted.
If you hold already a UK License – We would recommend to convert it to a EASA Member State as soon as possible.
Stay up to date by checking the EASA and UK CAA Homepages.