Did China say how exactly they will start dealing with the situation? They will be in for a legal quagmire if they do not have a concrete solution on how to deal with the projects that will have an ICO. The foundation is in Switzerland, with all the complete legal paper work, the development team is somewhere else and is not financially involved except for working on the project, also legal, and the project itself is comprised of nodes located everywhere.
How is China going to stop that?
i though a bit about it:
1. China would enforce some sort of ID-connected btc adress system/database for every single chinese citizien.
2. Chinese bitcoin exchange (the chinese exchange customers) can only send bitcoin to these adresses.
3. Chinese Banks (the chinese bank customers) can only send fiat to exchanges that agree to this kind of rules.
Of course that doesnt include the miners and OTC.