What they say
What really matters is whether central banks and sovereign wealth funds start to see the RMB as a viable store of liquidity and value to rival the US dollar. Such a shift seems unlikely while doubts persist over China's prospects for a smooth and orderly rebalancing, and while China retains widespread capital controls.
Andrew Colquhoun, head of Asia-Pacific Sovereigns, Fitch Ratings

The RMB's inclusion in the SDR will not trigger an immediate capital inflow into RMB assets. In the medium term, the role of the RMB in global reserve assets could rise. The currency is under-represented in global foreign exchange reserves (around 1 percent recently). Reserve managers will gradually increase holdings of yuan-denominated assets, possibly reaching 5 percent, or a net inflow of $350 billion, in the next five years.