That’s a great concept. In fact, Lucas (@MahatmaDagon) and I have been talking about a bunch of concepts and ideas for a “HLDW 2”, be it a sequel, prequel or spin-off.
We had started to work on an interactive eBook encompassing events prior to Highlands, Deep Waters. It would tell the story of the granddaughter of one of the cultists in the original game - an English and Film Studies undergrad student. She would be investigating the sudden disappearance of her friend-girlfriend, and the story would feature another branch of the Domhainn in Scotland and expand some of the game’s alternative plotlines.
This project, however, came to a halt. We’re still waiting for HLDW to be released and we will assess how people will react to the game - and whether we are capable of establishing a fanbase for a potential series. Also, I’m working on personal projects and Lucas is working on The War for the West. So… we have time.
But thank you for your suggestions and enthusiasm. It’s really amazing to see that people enjoyed this project so much 
Not sure if I understand. Did you choose to send the files and evidence to the press or something like this? It is possible to expose the Domhainn in the end, but you have to follow a specific pathway.