A leaked Berlin memo has set out a blueprint for a super-sized EU quango that could handle the running of EU bailed-out nations.
Today in Berlin, Merkel will tell David Cameron that such treaty changes don't require a British referendum. There are plenty of other gaping rifts on the table. The simmering row about the role of the European Central Bank, and whether it should start to bail out some eurozone nations, despite fears of runaway Weimar-style inflation.
And to top it off, the Tobin Tax. What a mess; what a meeting. Some accommodation will have to be made, though at this point it's difficult to know where: protection from the Tobin Tax in exchange for stronger fiscal union looks likely.
And no to ECBGreater fiscal integration looks inevitable anyway with a two-speed Europe - France Germany and other AAA-rated eurozone members - with Denmark and the UK on the outside. But how far outside? Cameron wants an agreement that the UK's position in the single market must be protected if moves towards greater fiscal integration are made.
To be a fly on the wall in Berlin later...