Radio 4’s Bottom Line and Briefing Room will combine in a special hour-long programme examining the economic and political future of the EU once Britain has left. Evan Davis meets Jean-Claude Trichet – former president of the European Central Bank – and is joined by a panel of business leaders from across the EU. David Aaronovitch will look at the politics of the EU and its future direction. France’s President Macron has outlined a vision of a profoundly transformed and more unified EU. But do all the EU’s members support such a vision? And what might a more integrated bloc on its doorstep mean for Britain?