I would suggest within the next 3 years you will see:
First. ECB rate cut. (this will happen very soon)
2. Bond spreads on weak members vs. US expanding
3. Protests in Spain, Italy and Greece to get more violent.
4. German citizens will find a renewed sense of Nationalism.
5. ECB, will move to remove weak nations from the Euro.
6. Protests will become even more violent.
Your #4 is the big unknown.
I’ve recently had the opportunity to discover my German ancestors back to the 1500s (a lucky genealogy accident). This required learning about the transitions from 1789 to 1990, a subject (except for the 1945-1990 part) that I was poorly educated about.
Germans my age (b. 1950) are allergic to nationalism, and with good reason. They have taught two generations now.
On the other hand - from the ruins, the Germans have constructed a society and an economy which seems to suit them, and to serve them well. They SHOULD be proud of what they’ve achieved.
With that pride, it seems to me, should come reluctance to piss it away so Greeks can retire at age 50, etc., etc. But will it?
On the answer, much depends.