I've wondered that too, Tegan. He'll be drawing his EU salary for at least another two and a bit years...not that he's ever seen the job as anything other than being a passenger on the gravy train (which he allegedly abhors).
When's this march taking place? With a bit of luck, it will be in London and he can be arrested as a traitor, hauled off to the Tower and pushed into an oubliette.
I guess you have to give him credit for being the conman of the decade. It's sad, because it says something about his followers.