No I don't think so! They will be able to reduce a huge amount of cost they were spending for printing money, but that's all! That would not make China more powerful. Digital Yuan would not make their economy grow in any way apart from the cost savings!

Also, China will be able to effectively cut down on black money from their economy as digital yuan will help the government to monitor their people's finances very closely. But that will not have a huge impact on the economy for sure!