Personally I'd like to see whether img2img works are copyrightable. My understanding is that copyright applies to the human-generated parts of an image. So e.g. In the case of a comic where the art is AI but the caption is human, the label but not the art is copyrightable.
How does that apply when we transform a copyrighted image? Is the resulting work covered by the copyright of the original? If so, can I create a bad sketch drawing, transform it with img2img, and get the result as copyrighted? If not, is there a specific denoising threshold at which copyright isn't applied?