ben_danger said:

My only issue with killing Han, would be that he essentially got killed in ESB. Killing Leia might work, she even gets shot, but you are right about the amount of footage available doesn't allow for much.

This could be a really good idea. It could be used as the tipping point that causes Luke to rage against Vader. Some sort of sad funeral scene could be easier to construct too than trying to make an entire death scene and following scenes for Han's death. Unfortunatly I think it might be seen as too contraversial for a lot of people.