Just about all the visual effects are done, and all that remains would be tweaking the audio and especially music.
-Entire scene recut and reordered for maximum effect.
-Entire scene has revamped color timing. No more yellow wash.
-Many blue blasts are now green.
-Anakin's starfighter has been changed from yellow to grey.
-Visual effects changes to add extra blasts from Obi-Wan's fighter
-Droid Tri fighters are shooting more to elevate the danger.
-Entire soundtrack reconstructed. All new music and sound effects.
-No more buzz droids
-Added the Star Wars theme at the end - hearkens back to the original adventures.