Developing countries have missed the (late) industrialization express that China got onboard; hence, they have little chance to ctach up with the traditional and recent power-houses. All they can hope for is to become outsourcing centers for developed economies/industries. China might have done certain policy mistakes but strictly-controlled economic management and the political courage to undertake the painful restructuring have been great policies. It is only further expansion form this point on except certain shocks from global economic conditions as well as the shifting of economic fundamentals at home. There is no sustainable economic development without sound manufacturing (including heavy industries as well as new internet-based, networked manufacturing) and China weaker neighbors (those which show open hostility out of lil' guy's inferiority complex) will be hounted by their own stupidity because they are missiong out on one of the greatest development achievements in history.
As you rightly pointed out, time is on China's side. Micromanagement is our specialty. But those coarse big powers and insignificant lil' powers are (luckily) unable to see it.