I predict the 'professional' unelected politicians in Brussels will continue to cut off their nose to spite their face until the proper, elected Heads of State put the brakes on them and insist on a sensible solution. And so it will continue..............
Brexit is their nightmare writ large - it shows the Projekt (copyright F-F) is reversible. And in a years time, there will be proof positive that you can leave the EU. Euro nations don't have a way out - they've joined a financial system with no exit button. But other non-euro nations would leave in the future.
I also find it ironic that an organisation that brags that its kept the peace in Europe since the Second Great Unpleasantness may be the cause of greatly heightened tensions in Europe. In the event of a euro collapse, Germany is going to find its financial system royally trashed. Conversely the nations of southern Europe are going to blame the euro for many of their economic woes - Italy being the current cheerleader.
As a euro collapse would be catastrophic for the member states of the euro, we're potentially looking at Europe's own equivalent of the 1930's Great Depression. In those circumstances, with 25% unemployment widespread in southern Europe and the more prudent countries of northern Europe looking at semi-ruined financial systems, the recriminations are going to be on an epic scale and will also widen political fault lines. Whether it will come to fisticuffs remains to be seen, but I expect things like cutting off other EU citizens from internal benefit systems, de facto embargoes by creating artificial obstacles to goods moving across borders and so on. Europe is not going to be a happy place when the next recession arrives.
That there will be another recession is inevitable. And - based on the effects of the Lehman crash on the euro - that the euro will be in deep smeg is also inevitable. The only uncertainty is the timing.
Therefore, I think a lot of the behavior of the professional' unelected politicians in Brussels is that of people realising they've dug themselves into a deep, deep hole and flailing out as they realise an already almopst impossible solution has moved further out of reach.
The heads of state of the 27 member countries are only being more reasonable because disruption to trade will have immediate consequence in their countries, whereas a euro collapse is a future problem - and one that neither has a predictable timescale nor predictable effects.