The mod wasn't dead or development ceased, but things got a tad weird. The core gameplay idea is and always will be the same, but there exists many approaches to it and I decided to experiment more until a better, more solid gameplay was reached. That process probably took longer than anticipated though.
So it was a bumpy ride, necessary after all. The end result is a much more structured gameplay, more original than previous attempts. It's also very modular, new ideas can be implemented easily. I think it fits quite well the first person puzzle 'genre', now it's time to get feedback.
A tech demo is meant to be released quite soon. It's 100% puzzle, no story, dull graphics, but all the core concepts are there. Hope it is a solid starting point and a good showcase for this project. See you soon!