China is sprinting its testing on the digital yuan. It will not take too long before the digital Yuan is executed and it believes China will become less independent of the US Dollar.
That will happen in your dreams, China can never be independent of the USD, they can only try more. This digital currency of a thing is not as important as many of you are viewing it, it will benefit more Chinese and will add only a few extra to Chain. The country cannot function in isolation, and there is no way Yuan can be trusted like the USD, at least not for decades when it comes to stability and reality. There must be a currency that fits a lot of characters that are dependable and peggable for the global economy. That is what the USD is doing right now, and it's doing it well, only that the Chinese are only looking for ways to defeat it, but such would not happen in just a day.
And as long as Chinese people are also moving around the world and transact globally, the USD will always be needed since it penetrates deeper.