Carney and his diplomats have been having high-level talks along these lines with a bunch of EU member states for the last few months at least. That's atypical

Carney and his diplomats have been having high-level talks along these lines with a bunch of EU member states for the last few months at least. That's atypical even. WSJ quoted French diplomats as essentially saying, "this is moving very quickly all of a sudden". Carney and von der Leyen haven't really talked about what this would mean but it seems safe to assume that they (plus leaders of the major EU member states) have been talking about it, at least in broad strokes.