While we can’t say for sure, it’s easy to imagine the Chinese government arguing that it doesn’t make sense for two regions of a country to have different levels of freedom now that the “one country, two systems” rule is dead.
In fact, the crackdown has already begun in Hong Kong, with police gaining sweeping new powers to identify users who post content that the government doesn’t like. Naturally, having experienced the open internet already, Hongkongers have no desire to have their freedoms restricted, which has led to a spike in VPN sales. Even still, though, the future of the internet in Hong Kong remains extremely uncertain.