Time will tell if it is "much better then the laserdisc" but who cares? This is not 10 years ago, and I don't own a laserdisc player...I own a DVD player....
On the last page (I know, what a pain to read back a page, hehe), it was brought up that Spaceballs wasn't an anamorphic transfer and was from the laserdisc master. Sure enough, it isn't anamorphic.. I decided to watch it to see what I thought. While the movie isn't perfect quality, it looks great (and definitely better than any of the laserdiscs I have, you can see the black scan lines on them, this you cannot). The Spaceballs DVD was released in 2000. Star Wars will look at least as good as that thing.. it has to!
IMO, you guys cannot be satisfied.. even if Lucas had the discs pressed in gold, you'd be complaining it wasn't high enough karat.
The quality will be fine. I for one am very glad for this release and will be snatching it up ASAP. It will rock. After December, anyone who didn't buy it will be wishing they did.