Are the USD Reserve days numbered?

The graph below depicts clearly the historic lifespan of the various Reserve Currencies the world has seen over the last 7 centuries.  You will note none of them last forever and right now the USD seems to be heading that way.  Last year an increasingly frustrated China called for a ‘de-Americanised world’ as it strategically bought up gold instead of US treasuries.  It has done deal after deal with international finance centres on the yuan/Renminbi and this week the South China Morning Post reported that Standard Chartered determined at least 40 central banks, both developed and emerging, have invested in the yuan and several more preparing to do so.  In 2000, 55% of worlds reserves were in US.  That is now down to 33%.  “Other currencies” has increased 200% in developed and 400% in emerging nations.