How do you propose that will happen exactly? Democracy is usually born out of stability, not revolution. Honestly, I hope China goes the way of Korea and slowly transitions into a more democratic country, but that is hardly a given. And revolutions in China have a nasty history of leaving millions of people dead/displaced and plunging the country into chaos.

edit: after writing this comment, I'm not comfortable with my assertion. Democracy in England was established (or reinforced) after the English Civil War and Glorious Revolutions, democracy in the US after the Revolutionary war and in France after the French Revolution.... so I take that assertion back.