Lucas had announced plans for a 6 dvd set a long time ago. The term "archival edition" is also something he brought up in the same article. As far as I remember it was planned to have several incomplete (yes, ironic) versions of the films - one without music, one with only the music, one without visual fx etc. - the idea was obviously to show how important each element of a film is. However that Lucas statement is very old by now and since his plans seem to change by the minute, you'll never know what's going to happen next.

And hey kev, I would really appreciate if you'd stop the unprovoked flamage - it really gets on my nerves.