UPDATE 13/2/2024: Following comments from Discworld game developer Gregg Barnett, in which the designer suggested some sort of rerelease could be on the horizon, Rhianna Pratchett has shed more light on the situation.
Speaking with PC Gamer, Pratchett - who is the joint owner of independant production company Narrativia, which was launched by Discworld author Terry Pratchett back in 2012 - clarified the company only has "rights to the characters" rather than the games themselves.
"If we did have the rights, then this would be a whole lot easier. We're genuinely not sure who does own the rights because studios have been bought and sold over the years, along with IP. Last time we investigated this, they were thought to be with Sony, but that's never been fully confirmed," she said, adding the company would "love to see the old games re-released".