Inspiration from old SSI CRPs
Someone mentioned those old AD&D 2E computer games released by Strategic Simulations, Inc. between 1988 and 1994. I played them all back in the day and now own new legal copies of most of them ever since GoG obtained copyright and re-released them.
Although it wasn't one of the better ones, Gateway to the Savage Frontier has potential for adaptation and improvement. It has a relatively simple plot with twists, and the campaign and gameworld has decent variety. But any new game inspired by it would be different--new setting, new campaign, perhaps different game system.
Who would be interested in something like that and in what way? I'm talking medium to long term.