Just say no.
Bad idea, what's the point? It won't attract any new fans (unless it's a serious UK garage urban R'n'B mix or some such shit). So who's gonna buy it? The fans, who already have the excellent original. At the risk of sending out some kind of "all releases fleece the fans" message, we don't need it. Like any album, good or bad, it stands or falls by how it was on its original released. You could argue that Transmission sounds "a bit 1979" (actually it doesn't) but that would not be a god excuse to remix it. A remix should bring something new to a track, not merely address perceived flaws in the original that aren't there. There may be different arguments if it was released on poor quality shellac and played at 78 rpm or something, but otherwise, just leave it alone. Some of the best records ever were great because of what they sounded like to contemporary ears (eg Kraftwerk, Bowie's Low/Heroes, Stone Roses debut, Hand In Glove, God Save The Queen, etc, etc).
Example of shite remixing after the fact: The Stooges - Raw Power. No subtlety, just crank everything up. I have no problem with NO remixes, some are better than the originals, but remixing an album? No ta...