What if Chin had failed to unify the 7 warring states?

I have always wondered what would Chinese history be like if the Chin Kingdom had failed to unify the Seven Warring States. Would China have followed the path of Europe and developed into multiple nation-states with different "national" cultures, languages, writing systems, political systems, and even religions, given the fact that even in today's China, huge divergences in culture and language still exist. For instance, the Kingdom of Chu, with its vast territory and distinct culture, could have evolved into a very powerful modern nation-state.  The same could also be said about the Kingdom of Qi with its maritime orientation.