I do not believe that we will see rapid and fast change in global currency reserve situation. just for the reason that it is not in anyone's interest. For example Chinese hold so much debt dollars they certainly do not want dollar to downfall fast. I believe that we will see a slow shift as other currencies weight in SDR basket grow slowly. juan is added in SDR basket October 2016 weight of 10.92%. its weight will certainly increase in the long term .https://en.wikipedia.org/wiki/Special_drawing_rights