Yep. One scenario that I thought perfectly silly but now seems not unlikely at all is a sort of decapitation - pun intended - on the order of the French Revolution but on an international scale. The aristocracy has become exigent and irrelevant, and that's not a good place to be.
Germany and France are likely to go first.
A return of the Holy Roman Empire is not out of the question. With a capital in either Budapest or Vienna.
It’s just not out of the realm of possibility anymore.