It probably can be reversed if the UK wants to. Any amendment needed to make that legally possible would most likely be passed by the EP. Not that it would be e

It probably can be reversed if the UK wants to. Any amendment needed to make that legally possible would most likely be passed by the EP. Not that it would be easy, mind. If neither the UK nor the EU desires this break-up, then it won't happen. It all depends on what the UK government does (which realistically speaking probably does not include pulling the emergency brake on the Brexit, unfortunately).