The killer app for me would be the ability to name some generated entity in a Firefly text-to-image composition so it could be referenced and used for world building. This functionality would possibly need to create a unique weighted set of references linking to the image references in stock and other elements or procedurals used to compose the entity in Firefly. That set of weighted references could be used in future text-to-image generation or some other system that could further break down that entity, possibly rendering 360 views as a background process or building variations that incorporate the creator's own CC Libraries.