The supernatural elements would not fit the game at all if you had planted the seeds for it during the first few days sure it might work, but you didn't or if there were they were extremely subtle. I'm sorry if this sounds harsh but that's why you should always plan a good portion of your story before making it, it feels like you've just been winging it up until this point.
It's good that you didn't force the update out and really thought about it, I'm sure the game benefited a lot from this decision in the long run. And the supernatural thing doesn't have to be thrown out completely, maybe have it as a fun Halloween special along the line or make a different game with those ideas and characters.