It’s not going to happen any time soon. The Overton Window in the UK has slid so far that it is now accepted (by both major parties and the mainstream media) that joining the EU in the first place was a historic mistake, and even as expectations of Brexit dividends have made way for the reality of massive economic damage, the narrative has shifted to this being a necessary price to pay for correcting this mistake and retaking our historic destiny as the Mighty Lion-Race Of Albion or whatever bollocks. The idea that the UK should be in the EU is as much on the lunatic fringe as the idea that it should leave was a decade ago. Maybe in another decade’s time, once the humiliation has truly sunk in, Britain’s constituent nations will rejoin one by one, at that time happy to adopt the Euro, metric beer glasses and driving on the right if that’s what it takes.