The USD is used as a backing currency for most of the worlds oil transactions.  Most of the worlds oil comes from countries the fundamentally despise the USA, but they still use the USD for their oil transactions.  They are called Petro-Dollars.  That being said, there is a world wide call to make oil transactions in whatever currency the buying country is.  Iraq, for instance, recently accepted Chinese Yuan for oil and natural gas. As China has become the largest Gold purchaser in recent times, it's probably a safe bet that their currency will maintain it's value.

There is also a trend towards a global currency reset, making all currencies backed by gold again and moving away from fractional banking.  I, personally, would love for there to be an exchange that showed USDe/Gold and USDe/Silver, hell even a USDe/Crude Oil....and traded in said transactions.  If there were such exchanges this coin would immediately become the strongest coin in the world as it would be the only one that I know of that is backed by actual tangible wealth.  Remember, all REAL wealth comes from the Earth.

In my own relatively basic opinion, we need to find a way to make USDe trade-able in gold or silver or some other tangible wealth.  Fiat currencies are on the way out.  It will take years, unless there is a global economical collapse, but if a currency isn't backed by gold or something else physical it will lose it's value fast.  Just so you know, if you didn't already, the USD (and most of the rest of the currencies) isn't backed by anything but the US Governments word.  There is actually nothing physical backing it since the early 70's.  The Federal Reserve is a private bank that the US Government buys it's currency from at an outrageous interest rate, which is stupid because the government can print it's own money for free.

Anyway, I hope this was educational to some of you.

P.S. If I had the money I would start an exchange myself so people could trade USDe for gold or silver.  I'd make a mint!