Yes. Huds for example usually are made so that the image seems as if it's floating in the distance. Ultimately one could have a light field display to achieve

Yes. Huds for example usually are made so that the image seems as if it's floating in the distance. Ultimately one could have a light field display to achieve all this in a flat package. It would be like a display consisting of small directional mini displays. It would have some resolution and brightness issues and would be expensive.