Room for manoeuvre for the EU after the Brexit-Vote

In the wake of the Brexit vote the remaining 27 EU member states will have to reach an agreement on an unambiguous common approach to the style of the negotiations. The member states need to clarify their vision of the future of the European Union. Should it be more flexible? The realpolitik analysis suggests that the creation of a third and novel kind of status, which would need a seal of approval in the shape of a treaty amendment.

Image: CC BY Moyan Brenn, Source: flickr