[snowsislander]

but for those central banks thinking in decades and readily raising their ratio of euro reserve assets, these are extremely relevant questions

They are indeed. I imagine the lights are burning way into the night in many central banks around the globe just to see what the scenarios look like.

There are probably other folks trying a few changes to their models also.

[in hoc signo vinces]

It's why China isnt selling their dollars to buy Euros...they know the currency (Euro) is monopoly money.