Thanks, I'm glad you like the update.
As for harm, in order to bring life to the arc, expect that some of the characters will. I'm not sure if you watched the teaser carefully, but really, you shouldn't be thinking about the girls.
As for further content, this is just a chapter finale. After chapter 1, there's one last chapter which I estimate to have 6-7 episodes. Considering that I have to give Sicae some attention from time to time, that will give us around... 2 more years of development, if not 3. There's still a lot to be done, so don't worry about the game ending soon.