Quite possible, it was released in 1999 and game in 1997. I would say original release might even be released in the end of 1997, same as Quake II. That's the second game I don't know the release name of. It wasn't a common practice to release it half year later, at least I don't know of any examples.
But I read what you wrote here, so there could be other like this:
COiSO released a 6 months old game "on request", it was nuked on some sites for that (Advanced.Tactical.Fighters.Gold.Edition-COiSo)
I really don't get how information like this just vanished from the face of the Earth. There are people who remember things, Quake II was supposed to be from RazorISO, but it's still strange this is not written anywhere.
And no NFOs were preserved, I get it for RARs, but it's strange no one at least stored the NFOs. 1997 is like it never existed and 1998 most RARs are lost.
EDIT:
I found this in your posts, it probably talks about the TCiSO re-release from 1999:
If you read the .nfo on GTA *RE-RELEASE* it is a game from '97 sometime and was only done for those people who wanted to use the addon released by DVNiSO. They acknowledge some will keep and most will nuke, but its around for the taking.