1. Boris Johnson becomes the new Tory leader, with Gove as chancellor. They campaign for a November general election on the basis of carrying out the popular mandate given to them by the referendum, including migration controls which necessitate leaving the EEA. The left is fragmented, with a significant vote in Leave bastions for a UKIP which is now campaigning to actively send non-UK citizens home. The Tories win a majority. They continue with the populist, don’t-believe-experts tone of the Leave campaign. Government without expert advice works about just as well as you’d expect. Scotland votes for independence and becomes a fast-track candidate for EU membership.
2. Theresa May wins the Tory leadership election and negotiates an exit from the EU which involves remaining in the EEA. As it becomes apparent that freedom of movement is being retained, there is significant unrest in some of the main Leave-voting areas. The country remains divided, but there is now also a narrative that economic hardship is an establishment punishment for voting Leave. The second Scottish referendum comes out narrowly on the side of the Union. The Tories hang onto power until 2020, at which point they are replaced by a series of messy and weak coalitions.
3. Following the Leave campaign’s repeated backtracking on its promises, a non-Leave candidate wins the Tory leadership election. A coalition of left-leaning parties wins the subsequent election, having campaigned on a slow and reasoned exit from the EU. They promise to invoke Article 50 only when a set of economic/stability tests are met. These tests are never met. Occasionally EU officials threaten to chuck the UK out, or other parties demand that exit happens at once. Then the markets go belly-up and everyone quietens down again. Eventually the non-invocation of article 50 becomes a long-running background political issue. The constant uncertainty around it is a perpetual economic and social problem.
4. Just as both major parties are tearing themselves to shreds in preparation for leadership elections, a large meteorite lands in the Mediterranean just North of Algeria. A large area surrounding the Western Mediterranean is devastated, including much of Spain and Italy. Negotiations are abandoned as everyone attempts to deal with mass movements of refugees across Europe and Africa. Russia uses the situation as a pretext to invade Ukraine in the name of regional stability. By the time the dust has settled, Europe is so changed, physically and politically, that Brexit is barely a footnote in history.
5. 2016 is recalled for faulty components and poor performance. It turns out it was supplied with the ‘0’ upside-down and that what we thought was a 1 is actually a cut-up letter l. Following a stern letter to the Years Commission, the world is awarded substantial compensation, including the return of David Bowie and Prince, a complementary Truth upgrade on all politicians, a nice biro and five months of amazing sunsets.
Happy ending.