After studying what Andreas Antonopoulos had to say on the matter of Chinese miners, I doubt if there is anything significant to worry about since the government officials, power plant operators, etc., would rely on bribes from the miners in such a scenario. Even if the central government issued some kind of decree, bribes would take over, because the electricity managers and the petty offiicials would still be accepting bribes. This will be interesting to see what exactly happens in the future though.
A lot of my opinion came directly from this video by Andreas Antonopoulos titled, Currency Wars and Bitcoin Neutrality: