Why would China have plans? China is well on their way to becoming the unrivaled military power of the world in the next couple of decades. All they have to do is wait and let the current trends play out. The only possible way to derail their ascent is a premature war--economic or otherwise--with the west.
I do not think this is necessarily the case. Their population is ageing rapidly, with due consequences for the company between citizens and the CCP. Internal tendons between the rich coastal regions, attracting all the labor, and the hollowed out interior could cause issues.
I don't think their ascendancy is necessity assured.
