Spielberg and lucas have said that they want nothing to do with HD-DVD. They only want their movies on Blu-ray.
They even put something in the contract that said if these films were releases on HD-DVD they would also have to be released on Blu-ray. It's one of the reasons why we haven't seen these movies on HD-DVD yet.
At this point there is no way in hell that we will see any of these movies(including the new Jones movie) on HD-DVD.
Also, The Star Wars series would be...