For any student of history, change is the law of life. Any attempt to contain it guarantees an explosion down the road; the more rigid the adherence to the status quo, the more violent the ultimate outcome will be.
China is a one party state. Sooner or later China will get to the point when the new social classes, which have emerged thanks to economic success, will have to be integrated into the political system. There is no guarantee that this process will run smoothly.