I think would be very usefull and lightweight instead of using layer nodes, mostly for procedural stuff like darkening/tint areas with cuvature/dirt, or lookdev characters with dedicated maps for make up, sweat, skintones.
Support corona lights(the ones that exist also in v-ray)
As vray even supports redshift light now, it would be great if it could render or convert also Corona lights(the ones that are similar at least) light materials seem already to render thx!