With the Brexit Referendum the UK entered a phase in which although it is still part of the EU, ECHR etc it had declared clearly that it wants out. Intention of act however does not equal acting, legally. Until the UK puts forward the Article 50 (or a school of thought states until the EU sanctions the UK) the UK is still part of the EU, the EU citizens have full access to all the citizens rights and the British tourists will not need a visa to party hard in the Continent. It is likely that the UK will invest highly on a disturbance somewhere in Europe (Greece is the usual culprit) in order to push the whole EU project in jeopardy. In doing that however she has still to face the 64036/14 and 33900/15 ECHR case “Ioannis Tosounidis vs the UK” (the same time this very case “decapitates” ceremonially honorable ECHR judges in their homelands).