https://www.gov.uk/guidance/advice-for-british-nationals-travelling-and-living-in-europe (https://www.gov.uk/guidance/advice-for-british-nationals-travelling-and-living-in-europe)
Looks like this will be the page to keep an eye on. Nothing new at the moment.
It's not likely to change much even when we leave. Although if armaggedon actually occurs I'm sure it will give us ample warning to get the tin hats out and take to the bomb shelters.
Dont panic Mr Mainwaring