Patrick R. said:

I voted to have the Original Unaltered Trilogy restored. I am unclear about the new Blu-Rays. Is Lucas going to make even more alterations to the films or will these be the 2004 versions?

So far all we know is that there will be an improved transfer of TPM with a digital Yoda and that there will be tweaks done to ANH's audio including a new krayt dragon roar.

On a less solid note, as I've said before I did catch a portion of a digital screening of ANH at CV and Luke's lightsaber appeared to be fixed on the Falcon and the color in general looked better than what I remember from the '04 DVDs.