This article has some interesting insights and other than the head line, I think it's largely on track. I agree that China will not dominate the world the way the U.S. and Britain did for the last 200. Nor will the U.S. dominate the world over the next century the way it has for the last 100 years.
China has had very impressive and unprecedented growth over the last 25 years. But it has come at a very stiff price in terms of wasted resources, corruption (which is an issue in all countries, but a higher scale there) and misguided polices (again..not only a China issue..the U.S. has had a number of misguided policies the last 15 years).
Given China's size, it's going to be a major player...and that is a good thing. They have some significant issues as this article points out. But as time goes by I'm sure many of them will be addressed. Hopefully their leadership will avoid overplaying their hand.