Will China choose Imperialist expansion, rallying Nationalism to avoid increased liberalization, or will China choose more democratic representation in government? (WWI suppressed Germany's liberal movement for years.)
Will China be satisfied with the gradual decline of the dollar, or will China be tempted to seek a sudden overthrow of the world monetary system and establish the yuan as a gold-based currency? (Essentially the trick Germany pulled in the 1870s, demonetizing silver to hurt France, ultimately leading to the collapse of the rupee and disruption of the Chinese economy via inflation.)
Will China allow economic liberalization in its interior provinces to the same extent as it allows elsewhere? One Chinese student claimed to me that Communists keep provinces like Shanxi comparatively poor and its people "stupid" so as to have a reliable source of soldiery to use against other Chinese. (19th century Austria also had a similar situation where provinces that were poor were favored for their soldiery.)
Will China continue to expand its claims at sea and abroad? (WWI started in the Balkans with Austria's attempts to expand its influence there.)
Will China attempt to build a blue-water navy to match that of the United States? (This was Germany's key avoidable error: they built it out of pride, not necessity, so the British thought it was meant as an instrument aimed at them and thus allied with France against Germany.)
There is still one big difference between Imperial Germany and Rising China. The population of Imperial Germany was increasing very rapidly. China's, it seems, is not. However, China's one-child policy seems to have led to a surplus of women-deprived males. In other countries rulers have often employed frustrated surplus males as soldiers in wars of conquest. What will China do with its mateless men?
1, I do not think that there is imperial expansion, because it has proved anachronistic, Germany, Japan, to use expansionary policies, but even at that time, the cost is too high compared with the colonial era of imperialism. U.S again proved that it was a high price today.
If you say the economic impact will be greater, I think there will certainly be, but all the emerging countries such as Brazil, India and so on, all will increase the greater impact, not just China. So do not be too alarmist.
2, if you say dollars, I want to say because the U.S to implement an irresponsible monetary policy, loss credit in the world. There were too many countries such as Europe, Japan, Russia, Arab, of course China wants a better world currency, IMF's SDR program is a good description. So not only China wants a better world monetary policy, because the U.S's irresponsible monetary policy.
3, China has allowed some interior provinces have more economic freedom, such as Chongqing, and Kashgar, which is China's free economic zone. Of course, not all places are like that, depending on actual needs.
4, China will have blue-water navy to protect the security of trade routes, of course, in order to protect economic interests, what is strange? True in all countries.
5, as the population, that some difficulties, although not completely without a solution. In any case, it is not worth to go to war, this is a simple answer.