Sorry to leave this question hanging
I think if we were to reach a consensus with the full dev team, it would be a toss up between Hinterlands part 3, the ruthless route, and the scene in the deep labyrinth. Out of the scenes I personally wrote, I'm really proud of the drinking game scene. And it easily doubles as the hardest to move to the VN because of all the moving pieces.
And yes, we have a draft of how the story is going to end, and how we're going to get there. We smooth out the details as we go.
As for changing the story to the fans liking... we like to include fanservice here and there, and we definitely listen to feedback and take suggestions from the community, but in broad strokes, we're doing the game we want to make, we don't really bend the bigger plot points to what people want or expect.