I am a bit disappointed that the article later says:
Historically, new world reserve currencies are backed by gold.
Prices just dropped on gold and silver. NOW it the time to buy! Protect your wealth my friends.
As if gold and silver will be the next world reserve currencies.
The optimistic me says that Bitcoin will be the next world reserve currency after the dollar, but that is depending on countries using it, which's already starting to happen in some countries. Sadly the article dod not say which fiat currency is the most viable alcandidate to replace the dollar (the yuan?)
I really believe that before we see a hard form of money becoming the world reserve currency we will see more attempts by governments to keep the fiat system afloat.
One of the alternative scenarios I think it would happen is that instead of a single currency having such status governments could try to move to a system with several reserve currencies or a single currency which was backed by a basket of fiat currencies, now I believe such a system will be more unstable than the one we currently have in place, but governments may try something like this before they are forced to accept a currency backed by a hard asset.