I hope you changed this back to the original, Senor Spielbergo. No more listening to George!
http://www.youtube.com/watch?v=e_sFW8grQtU
I doubt I buy this set until it's super cheap during a holiday sale or something. And I hope the blu-ray and geek community learned last year to not put money down for anything with Lucas' name on it until you know what's really in the package. But I trust Spielberg to do this release the right way.
I know I read a review somewhere about an HD showing of the trilogy earlier this year. Someone perhaps at AICN reported the movies were intact (truck going off cliff reverted to original shot in Raiders). The only change was the snake reflection was still scrubbed out, and that's such a small change (probably for the better).