For exterior flight scenes, it would be great to have a realistic cloudscape rendered, seen from above. This is probably very complex, since there are many applications that treat this, with a lot of manual effort involved.
VrayBumpMtl to support multiple normal map like Vray GPU
Needed to use two normal maps with different coordinates when using UVW Randomizer and stohastic tiling on one of the normal maps and without on another.
Polygon tool to define scatter areas inside Vantage
When you decide to go full vantage for end result it is very time consuming to go back to max, vray, sketchup to make easy objects for defining the scatter areas. This would be especially helpful when scattering forest areas in large area projects...
In order to fine tune the water surface settings, and get preciser results, it would be great if the water surface animation showed on the viewport animation preview.