Nope. It seems you should have acted earlier given the British gov't hasn't known what they are up to for a long time... And the thing is, will your license be recognised after 29th March? I haven't really followed the whole thing but in case of a no deal Brexit you are caught with your pants down.
I know of a very experienced expat in Asia that probably will have to re-sit ATPL exams after many years due to this.