I guess the bottom line is that art evolves, and some of the species choose to remain the same. We've gone from cave man drawings, to digital images. But many still choose to make cave man style drawings, or paintings, sketches, etc. I would imagine the next step will be removal of the medium which holds an image. We'll just have the image beamed directly into our visual cortex. Then we'll experience the scene as if we were actually there, even smells might be included. Even when that level is reached there will still be digital photographers, traditional photographers, sketch artists, etc. Hard to believe a 3 letter word "ART", can be so complex to explore.