I could put it up for sale now, but I don't really want to sell a product that isn't complete yet.
I'll probably start selling the full game once it's complete.
As for future updates/rest of Act 2, it will be mainly focused on finishing off Lenya, Violet, Cecilia and Jasmine's story, then the villain for Act 2.
When I start Act 3, that will be where I'll really get into the other two main girls story/romance. And about that part you mentioned at the end of v0.10, that individual is no longer hiding there/in that specific place. (She already left and is somewhere else.)