I'm still debating on whether or not to have the upstairs be fully explorable. It might make it easier to add more characters(I'd have more rooms I could populate with people or have some of the current ones move upstairs during other phases of the night).
As I am not suuuper into disposal myself it's not exactly the biggest focus for me writing-wise(I like light disposal but I don't like it being super duper graphic). I might add more disposal-focused game over screens for fatal endings to player prey scenes(if you have it enabled, anyway), but I'm not sure if I'll get much more in-depth than that. Even the fatal ending for Duncan's scene if you have disposal on isn't the *most* graphic and isn't a particularly long portion of that scene.
I can't say for sure when specific characters will be getting more content as I'm working on this in my free time. I will say, I currently have a poll on my patreon for paid members to vote on which of a couple characters will be my focus for the next update.