Sure thing,
For the first 2 questions, you can check the scene guide where it indicates how to unlock each of the 49 scenes, here is the link: https://eroism.itch.io/insect-prison-remake/devlog/825035/insect-prison-remake-scene-guide.
For the next update, we don’t know when we will be able to release it. We will be off on work during September, so the most likely date is late October.