Obviously it wont disappear on 29 March. Over time, as the ramifications settle and the reality is cast in stone the political elite will slowly close ranks and return to normality. We have seen 'tidal changes' over the decades but it is around a century since the political landscape changed for good, when the Liberal Party disintegrated following the Great War. Since then no manner of chaos or crisis has left a permanent mark on the overall climate- two parties fighting over a narrow piece of political land and filled with the chosen and trained elite, with a few strays let in to provide the illusion of openness.
Even the perpetual crises of the 70s served only to shift the Conservative Party to the right for a decade and the Labour Party to the left for even less. By the start of the 90s a new consensus emerged and both shifted naturally back to either side of the centre.