I'd bet that local governments across China have been advised to start enforcing and bringing in all tax income that they are legally entitled to. Sooner rather than later, and I expect this to increase costs to both foreigners and locals.
Beside financial foes that local governments face, I'd connect this to forthcoming large-scale launch of e-RMB, and how that will enable the authorities to track transactions more efficiently.
Would be bad PR for the powers that be, if they at that time "discover" that pretty much nobody has been paying taxes that they should.