I think the SDR steps in temporarily as the IMF has added the yuan to their basket of goods. An analyst discussed the need to balance the gold/GDP ratio for each of the participating countries so I'm thinking a basket of currencies backed by gold silver and various commodities
Last I read the Chinese needed more time to accumulate the necessary gold as they must have seat at the next table. To be a little more speculative I believe GLD and SLV are the financial vehicles to recapitalize the next China and the US currencies
JPM manger to accumulate 500B+ oz of silver in five years. Hello CFTC????