I’d love to see them keep the original tracks, and then have “redone” versions mixed in as an option (that you could disable old, or new, or keep both). At this point I’ve listened to it for so long that it’s become ingrained in my psyche, and I’d miss it terribly if it ever completely went away.
If that’s the case, I’m glad. I know they said they’d also be just upping the quality on at least the original voice acting audio for the classic version of the campaign.
So if it does extend to all sound effects and music too, A-okay. The night elf stuff in particular always stood out to me the most alongside the human tracks.