If that's the ultimate censorship case for China? Air-Gapping the whole world and using its own countrywide Intranet?
No. China is not going to do that. People in the West often misunderstand the Great Firewall of China (GFoC). It is relatively easy to bypass, and Chinese people are generally better informed about what is going on in the world than people in most other countries. Keeping information out is not really the point. In the West, there are three types of information: 1) Information that the government approves of and promotes, 2) Information that the government prohibits (child porn, holocaust denialism, videos of journalist beheadings, etc), and 3) information that the government tolerates or just doesn't care about. But in China (and many other countries) the third category doesn't exist. If people see something, and the government isn't banning it, then they assume it has the government's approval. So part of the reason for the GFoC is to say "This isn't official information". People can bypass the GFoC, and see the information, but they know the government has disapproved. Chinese people also have a very different view of dissent. in the West, toleration of dissent is a symbol of strength, and being thin skinned about criticism is viewed as weakness. When Obama lashed out at Fox News a few years ago, he was factually correct, but it still made him look small and petty. But in other countries, including China and Russia, if someone in power is criticized, and they don't fight back, they are viewed as weak. The Chinese Communist Party has no democratic mandate, and no legitimacy other than power, so they cannot afford to look weak. So the GFoC is really a symbol of strength and power rather than an attempt to actually block information.