All ideas

Please add Energy Conservation on Refractive materials.

It's a tool that works very well on other platforms like Cinema4D and 3Ds Max. I see that it could add a lot to the V-Ray workflow in Blender.

Corona had released a Fabric Material in Corona 14, its really neat and it will be very helpful to have it in V-Ray too. Please consider to integrate in next update.

V-Ray Volume Grid is a special kind of volumetric effect that works with grid-based cache formats, compared to Environment Fog which is a general purpose volumetric effect. The Volumetric Grid reads its data from an input file which supports grid-...

Please consider adding an officially supported native V-Ray for Blender version on Linux. Linux is widely used in professional production pipelines, but the lack of V-Ray support forces many artists to stay on Windows despite preferring Linux for ...

Integrate Blender's ability to create node groups that can be instanced in different materials and saved as assets for frequent use

Pretty sure you can do much better work than MAX and Corona.Features from MAX Color Correction + LUT and Curves from Corona Color Correct + Correction per Color channels

Add Displacement Maps in Material instead of a seperate Tag - similar to the integration in Corona Renderer or even Redshift.

More than those 3 automatic previewing options possible (Face Skipping, Refined Clustering, Vertex Clustering ). being able to create one's own simple preview (for furniture, any objects... event buildings)

such as any cosmos proxy asset.