I can't think of anything off hand...but maybe replace a few of the poor sound fx in ANH (maybe buttons and knobs-...maybe the lightsabers!
)...I think one thing that really dates this films is the sound track...particularly the foley fx. They used so much of the on-set voices and not enough ADR...and the ADR has an odd EQ or something...like they recorded it in a tin can or something...
Just one more thing to think about!
