So far things look great, though I don’t yet have a lot of time to really dive in.
What I’m mostly curious about at this time is whether it will eventually be possible to override the power of an emissive material. Right now it requires very high values to have bright lighting, which will overpower any texture applied to the material. An example would be a TV screen. At this point it looks really cool the way animated materials affect the lighting, but the material itself will just be glowing extremely brightly.