Given the size of China’s internal economy I think they already know, just on their own, that they don’t need anyone else and any agreements with other countries are just cherries on top, because you can take Europe and fill a Chinese village with it. This is not a prediction of the future.
China doesn't have a strong internal economy. They probably have a lot of saving that might be able to be translated into an internal economy, but they seem to have a cultural leaning towards frugalness: https://www.nytimes.com/2025/10/23/business/china-economy-co...
China has a massive energy & manufacturing base, which can easily translate into military power, but until they decide to transform into a war economy, they need trading partners to keep their citizens employed, which is already a struggle for their young adults who I guess don't want to work in factories.
That frugality is likely temporary. The Greatest Generation were frugal due to lessons learned during the Great Depression. That frugality was lost in a few decades. The corresponding event in China was the cultural revolution, but poverty lasted past that. It's been a few decades, and now the Chinese are famous for their love of luxury status products.
