Hmm, that depends, what do you consider a happy conclusion for the story?
something like everyone is alive and somewhat happy (or at least accepted their situation and found their happiness in it) (also if Goddess and Hellele stepped down from overseeing the world for one reason or another, but that would be too good to be true)
honestly, I would love something like a big harem ending, but that could look kind of strange, especially with all those women who had intercourse with Mars.
also I want to say thank you for communicating with your community, that's very cool
and one more thing, last scene with Cecille in this update was phenomenal, I just can't express this enough, it was amazing.