I don't think 3D video was really a different class of media. 3D would never replace animation but imo real 3D would replace 3D projected on to a 2D screen just

I don't think 3D video was really a different class of media. 3D would never replace animation but imo real 3D would replace 3D projected on to a 2D screen just like 4K replaced FHD and FHD replaced HD.