Having multiple language sections would be a great way to differentiate this art site from others. The people who would want to use them the most (those who barely speak English) aren't currently here to voice their agreement. It's not a community within a community, it's just a bigger community. The idea is not to replicate every aspect of the English forum into other languages. Some sections (like sketchbooks and challenges for example) would be in one section where everyone would pool them together.
If you take a random look at the artists on CGHubs gallery on the main page you will be surprised how many are Asian.