Runey, here's my question.
Well, at which point was Lin happy being a slave? The moment you met her, she was terrified of you simply because you were new to her and you had power over her. In her very first event you have the option to ask "Are you scared of me?" and she flat out says yes.
Edit: I forgot to mention some nuance. She loves being your slave after getting to know you well, but never loved being a slave in general. I tried showing this off better in Sylvia's remade event. A lot of earlier events were like this, I almost see them as the frame work of the events that replace them now. Such as Ashley's scene where she reaches peak obsession/craziness. She goes on about the people at school giving her shit and says she doesn't need anyone but you, etc, etc. It's only like 1 minute of dialogue. That will probably be remastered at some point. But many things will be kept simple too.
Everyone still loves the dungeon, and I'm still releasing content for it. I will even eventually remake a lot of it and add the ability to make them call you a title like Felicity and Emma. All this content was made to be repeatable so you could do it in the future (or present now).
I don't believe Ellen has changed her opinion much.
The harem is still sexually submissive, but they've become more independant, which is what I think you're noticing. Lin went from a period where she was afraid of you, to willing to do anything for you, to becoming a more equal partner. This was definitely always the plan. You inherited a broken hotel which filled up with broken people, and through progression you upgrade your hotel and relationships and fix many parts of both. I've always wanted to create a story where ACTUAL developments occur. Not something like a level up, but actual character development. Sometimes this gives players the wrong impression (especially since this game is a work in progress) that characters are a certain type of way, or are changing into a certain type of person. (Some people were afraid Lin was going to turn into a turbo slut like Jin for a bit.)
But of course the story evolves with each update, and all the feedback I get. I couldn't tell you with 100% certainty what will be in v0.15 at the moment, but I always have a direction, and that direction has never changed. Priorities have shifted very early in development though when people started complementing me on the story and wanting to know more. I think this was around v0.3. Who knows what this game would look like if people didn't encourage me to write more story, but if that shift didn't happen, the game would probably look more like a dating sim and sex unlocker instead of a true visual novel. I'm glad I went this direction though, because it was what I also wanted to do. I enjoy writing story a lot more than I enjoy writing sex.