I haven't heard from VIA's Bruce Chang (their Linux employee) or anyone else at VIA Technologies about a resurgence in their open-source support. Nor has there been any major mailing list discussions. The only code there's been bits of the community working on has been VIA KMS support. That kernel mode-setting code is still not in a shape to be landed and only recently has RandR support, among other features, come under the microscope. There's also still work left on the OpenChrome DDX driver.
What's the interesting bit of news today is that a new VIA engineer popped up on the Mesa mailing list. Jacob He, an engineer at VIA China, asked a question of the list.
He was looking at their Mesa code and that there is a Gallium3D "failover" pipe driver for hardware/drivers that can't take full advantage of all the needed OpenGL capabilities. He was wondering why the work was basically discarded.
The answer to his question basically comes down to not fib about features of the hardware that are not properly supported and that the performance using the software fall-backs can be extremely slow. But why is this VIA engineer even wondering and digging through the Mesa / Gallium3D code at this point? That's an answer I am still trying to figure out...