If I understand it right, 1080p won't be supported by the first wave of players and discs. So you might be waiting for King King in 1080p for a while...
Well I for one am not planning on getting an HD player (I don't own an HDTV) any time soon, so this will be the best version of the film for me for a long while still, especially since it will be the first time I'll own it.