RE: We've already past "end game". Either you're ready or you better get praying....
Most of the worlds population still seem to think that things will go back to the way they were once the pandemic passes into history. They don't realise that the Everything Bubble has been pricked and we're going to face repercussions perhaps for maybe a decade or more.
It seems like Modern Monetary Theory and Universal Basic Income along with money printing and debt monetisation is going to be the dominant "solutions" that the powers who be will try to use. That all goes hand-in-hand with the cronyism and massive social engineering that has become more and more prevalent every year. It looks horrible to me as I see massive currency debasement as an unwanted side-effect of it all.
Jim Rickards talks a bit about the SDR (Special Drawing Right) becoming the new reserve as a basket of currencies - a bit like you suggest above. The US people will not want to give up reserve currency status, but since the US now has the most covid cases and may end up being devastated economically they might not have a choice.
These are undoubtedly historic times that we are living through. I pray we can make it through the other side with some decentralised solutions that can take humanity forward and not leave us in some kind of Orwellian future.