I really think that the endstate for China is a civil war (not a revolution--think more along the lines of our own civil war).
It certainly wouldn't be the first time in Chinese history. The Chinese leadership has done a very good propaganda job of glossing over the fact that China has had a lot of historic problems when it comes to actually keeping the country in one piece.
It would be ironic if an attempt to unify with Taiwan (a territory that has only ever been under direct Chinese rule for something like two decades) leads to a massive civil war and fracturing of the current incarnation of the Chinese Empire.