I particularly like the pan-scan versions you are including. We did not even get a pan-scan 2004 version here in the UK.
As much as I love the ANH Split Screen, I would relish a version with the original crawl for the 1977 release.
Or how about a 3-way splitscreen?? The 1977, 1997 and 2004 versions on screen at once.
Failing that, how about a version comparing the 1977 and 1997, 1977 and 2004 and 1997 and 2004 versions, each on an alternate angle.
For this set, something like that would be the icing on the cake.