Will or when will youtube ever have all the videos played in HD?

Some of the videos I watch are in HD, does anyone know if youtube will change %26quot;all%26quot; of the videos on the site to that quality? or will we be seeing more site updates?Will or when will youtube ever have all the videos played in HD?may be in a couple years since HD videos are still big in size and take some time to upload unless someone invent a very good codec to make HD videos small.Will or when will youtube ever have all the videos played in HD?Videos that were added to Youtube BEFORE HD content was allowed to be added will not be upgraded simply because they were shrunk down before posting. Also, some people may continue to upload videos that are not HD as well.Will or when will youtube ever have all the videos played in HD?When you have to pay for it. And also when no one except film companies can submit videos.