As announced around a year ago here, I've converted Demonheart into a standalone game. It will be coming out in short chapters, and Chapter 1 is available on Steam and itch.io.
For everyone coming after playing the modules, the visual novel is an alternate universe. It begins before the player got acquainted with Orchid and deals with the Orchid/Raze + Rivera storylines. Some of the content you've already seen, but most has been rewritten. You can see on the game pages what it is and what it isn't (everything that is not shown, you can assume the game does not contain).
There is also a web page here. I'm not sure yet if and where I'll keep a development blog for the new game, but I'll link it if I make one.