I find it interesting that some UK - non EU flights are able to be operated with EI- registered aircraft. EI-HEN operating the RK514 (FR UK flight number) Edinburgh - Marrakech twice this week. Technically EDI-TFS which it is operating right now is also UK - non EU.
Also EI-HGM operated Stansted - Rabat on 20/09
I take it we'll be seeing G-* aircraft based at Belfast come March?