That's a really interesting bit of info, and one I think is kinda cool. Games rely on violence WAY too much for gameplay, even if it's cartoony/stylized. I mean come on, even Mario is running into the Koopas homes and crushing them or burning them alive. It makes it even worse in NSMB that you slaughter them while they are dancing to happy music.

(seriously, did no one at Nintendo see how dark this can look?).
Reading this makes me MORE interested in it. Take the time to come up with something fresh.
Maybe it could be like Animal Crossing++.