No it wouldn't but I don't know how many who would really like it. ;)
I went through the Laserdisc audio track for Empire again recently (which is believed to be the original 35mm Dolby Stereo track) to see if I could find any differences in terms of content between that and the '93 DC audio track and to my ears they are exactly the same, minus the sound effect of the crashing snowspeeder. I think the different sounding explosions and lasers etc. in the beginning of the battle of Hoth for example, sounds different due to the different levels this track was mixed at combined with the limiting applied. At first I was fooled into thinkin several sounds were unique to this mix but when I went back and listened carefully to the DC track they were present but more subdued in many cases, I also checked the '86 JSC LD audio and to me it sounds identical to the earlier "35mm - mix". So maybe that one is a better alternative for preservation.
I'm curious to hear your thoughts about this, hairy_hen, and if you have find out any differences between these?
One more thing, according to Matessino's 70mm difference notes, The Imperial fleet establishing shot after the magic tree scene has a different TIE fighter sound effect. Have you guys listened to the french and spanish audio tracks on the GOUT in this sequence, notice how much better it sounds, could be an actual 70mm-cut sound effect. ;)