This is going to be the most interesting question. China worked pretty hard to get the Yuan in the reserve currency basket, and they worked even harder to reassure the world after they pulled the devaluing stunt in August. From the WP article: "But the Chinese central bank argued on Tuesday that its goals were more mundane than spurring exports and growth. Rather, the bank said that the change was a one-time event to allow it to set exchange rates in line with free market practices. And in their initial responses, many analysts agreed."

If they do it again then they lose all credibility with the rest of the world. And how the world responded would change China's trajectory.

So its interesting to see what they do.

[1] https://www.washingtonpost.com/news/wonk/wp/2015/08/11/china...