No chance at all of this happening in the next two years, or even the next decade. The US economy is the most productive in the world, growing faster than China, and population is surging thanks to 2 million illegals pouring across the border every year. Inflation is down to 2-3%, very modest by historical standards. The idea of a common BRICs currency or some kind of global barter system based on gold or barrels of oil is pure fantasy - beyond token efforts by ChiRussia for sanctions-dodging and propaganda/PR purposes.
Same sh*t has been talked about since 1971 and is, if anything, less likely today than it was back then.