adding Ray tracing shadows to the viewport 2.0
I think the next step to improve viewports 2.0 is to add the rate tracing options to it. Features like Ray tracing shadows reflections and even refractions could be very useful. I know that in the upcoming version the new direct X 11 shaders and support supposed to give us better control with textures and maps. Now that Maya supports substance materials, and PText (needs better integration in all things including mental Ray and normal hardware render) we can get faster and easier and better looking scenes. So more control over the lights and shadows will be very useful specially for layout work and fast rendering jobs.