My immediate wishlist is rather short, to be honest, and more on the level of Patch material than features for a new version. ^_^"

1. micro-polygon smoothing for SuperFly
2. make SuperFly fully compatible with Blender Cycles (so far, it is missing some of the node types Blender Cycles has at its disposal)
3. maybe look into Eevee compatibility
4. in case points 2 and 3 are not achievable for some reason, provide an easy export-to-Blender function that gets your whole scene over on the fly for rendering (ideally with all SuperFly materials intact)
5. provide GPU-rendering support for the newest video cards (so far, the Turing family cards don't work, if I'm not mistaken)

Run, wolf warrior, to realms eternal....