Is this really a surprise to anyone? There had already been confirmed changes to a few things MONTHS ago. Granted, these new changes that have been brought to light within the last 24 hours or so are much more significant than things like changing the sound of Obi-Wan scaring off the sand people but does no one remember the 2004 DVD release changing lots of things from the Special Editions (which had changed quite a few things from the original 77, 80 and 83 releases)... George Lucas is obsessed with changing the Star Wars flicks.
I still have my pre-order in place because I want the full HD treatment... even though some of the effects apparently haven't been finished as previously stated by Lucasfilm. Okay, well, I guess there will be new surprises that I'll learn to hate... or love, I could end up loving some of the changes.
Nonetheless, all of the deleted scenes and behind-the-scenes stuff will be worth a good chunk of the $85 (Gold Box on Amazon) I'm planning on paying for this set. So I'm still in.