"Nightdive Studios Is Dedicated to Delivering the System Shock Remake Everyone Wanted"
https://www.escapistmagazine.com/v2/system-shock-remake-nightdive-studios-faithful/
It restates how SS2 got re-released in the first place, including this tidbit: “When I went to go purchase the game on GOG, where I assumed it would be, I couldn’t find it,” Kick said. “It wasn’t for sale. But it was their top most-requested game.”
On "
Abandonware": Searching for buried treasures is pretty much Nightdive’s mission statement. They specialize in games and franchises that have been left to languish by their original creators. “Abandonware” is a term often used, though Kuperman was quick to chime in the moment the term was mentioned.
“My attorney would have me say there’s no such thing as abandonware,” Kuperman said.
“There’d be several paragraphs of legal stuff after that, but we like to say ‘the lost and forgotten classics.’” 
