Since the Bretton Woods agreement that established the dollar as the GOLD-backed currency of international trade and reserve, the US has reaped enormous profit by inflating it and forcing the rest of the world to absorb our inflation. As a nation we have done to the world essentially what the banks and Wall Street have done to the middle class within the country - used inflation as a mechanism to transfer wealth. This was especially true after the final gold backing of the dollar was abandoned in 1971. But by that time it was too late for the world to reject the dollar. It was firmly established as the world's currency and the world was stuck with it. In 1971 we did to the world what the banks had done to us - lured us into the use of paper money by backing it with gold and then pulling the backing.
If, as I believe, the dollar is collapsing as a result of the Fed and our government inflating the currency and destroying the nation's savings, then a new world currency will need to take its place. You can be sure that the monetary lesson of the last sixty years - he who creates the money reaps the profit - has not been lost on the bankers and politicians of the rest of the world. When the dollar collapses, somebody is going to launch a new currency to try and take its place. There may be something of a competition because the prize is so grand. I would think China would certainly be in the running. Russia and some coalition of Arab states might also join in. Which currency will win? ANY country can print bills or create computer accounts. Why would the paper money of one be favored over another? Because of the pretty pictures? No.
The currency that replaces the dollar as the global currency will be backed by gold. Yes, backing it with gold limits the rate it can be inflated. But it will HAVE to be backed by gold in order to be accepted as the world's currency. The banks are willing to do this because they know that eventually they will be able to break the backing again and run free and naked through the fields of endless fiat money. But first they must establish a new global currency. And it will be gold. It may not be fully-redeemable by individuals, but it will at least be a Bretton Woods style system where it is redeemable by banks and governments.
There will be a world gold standard within ten years tops.