I have certainly considered this scenario many times, of how the dollar regime might evolve, and the one discussed below remains one possible outcome.
There is an intense international discussion going on about the future of the international currency system, and relations in general. I have referred to this generally as the 'currency wars' for some time.
Most Americans have yet to notice this, due in no small part to the silence of the mainstream media. If the US and the BRICs cannot engage in a rapprochement over the future of the international monetary system, and keep pushing a hard line for a US dollar hegemony, then of course the BRICs may pursue those discussions by other means.
One way to do this would be to revalue gold at let's say $10,000 per ounce, and use it to ...