For Blender development I think it’s better to focus on improving rendering of points and volumes in Cycles and Eevee. In general it’s a better experience if you can do everything together rather than compositing with another renderer that uses different lights and materials. Maybe we can use some ideas from Krakatoa.
I think that’s the direction things are moving into anyway. From what I remember, Krakatoa is from a time when renderers had no or poor support for point cloud and volume rendering.