I would think that before long, the UK will be re-admitted as well as the German aim of permitting near-neighbour economies (schengen zone? nordic countries?) into the room. France doesn't want that right now, but if you think about it, the materiel industry is pretty trans-national and the UK has a lot of it in Ferranti, Marconi, GEC, BAE. Everyone does JV back to before Brexit, they didn't just fly apart because Nigel Farage got a win.