He’s also got this Patreon, though I’m not a fan of recurring donations for a single-player game.
Anyway, Scott’s effort looks more like something between a proper port and a remaster as all the art assets and much of the mechanics look unchanged. Graphic effects are being added, the art may be AI upscaled/filtered, frame-rate is getting a nice boost from 24 to 60 fps, and he’s planning on launching on consoles too. Nothing to shake a stick at, still, I’m hoping for at least a vertical/tate mode and clearer campaign progression.
The 2010/2015 editions on GOG and Steam look like very basic ports with an only upscaling filter.