This is Python Blue. I was music composer and tester for Deadly Shadows 2 while it was being developed.
Unfortunately, your guesses are as good as mine regarding kartanonperuna's whereabouts, let alone if the custom story will ever be finished, a possibility that becomes slimmer as the years go by (can't believe it's been five years since I wrote the pieces I had for this!)...
As a consolation, however, I did keep this unfortunate circumstance in mind, and I decided to release most of the pieces I had written thus far for the custom story on my Bandcamp page earlier today. Game modders are hereby free to use the pieces as they see fit for their own projects, and if enough people express approval, I will consider uploading to Spotify as well.
Thanks for reading, and the most sincere of apologies for the apparent fate of this project. The soundtrack can be bought for a very affordable price here: