I know a lot of people think that the PT should be completely remade, but I really don't see it happening any time soon. I do think this idea could be viable though. I know that people think it's only fanboys that gripe about the PT, but I'm sure a LOT more people would jump on the bandwagon if given any other option.
Disney should try this:
Pull out the original work files for the PT. Every take of every scene. All original CGI files.
Give it to a competent director/editor/producer team.
Re-render the CGI with better detail and integration. AotC SHOULD look better than it does.
Find better takes/pull out a better performace from what's already there. People are always complaining about Jar Jar/Anakin... but honestly, there is one take that stands out as a sore thumb for me... when Padme meets Anakin, her line "You're a slave?" is god awful. We know she is capable of better. There has to be something better in the archives. And I truly think you could fix Hayden's Anakin.
And come on - The Birth of the Rebellion scenes are complete. Put the best subplot of RotS back in!
CGI is cheaper (and better) than ever, and with all photography complete...