One week ago the PBOC issued a notice about regulating Bitcoin exchanges. I don't think that the PBOC changed its mind within some days, so probably only those Bitcoin exchanges that do not register with the authorities will be closed down / cut off from payment services.
Strengthening regulation of Bitcoin websites
According to the Telecommunications Act and the Regulation on Internet Information Service, websites that provide Bitcoin services like registration, trading etc should register with the telecommunications regulation authorities.
The telecommunications regulation authorities, following the determinations and punishment opinions of the relevant management authorities, should close down illegal Bitcoin sites according to law.