what fetishes are currently in / planned?

Seconded. if this is super vanilla and mostly NTR (even if you can disable it, it's in there because the dev wants it) i want to avoid it. 

I’m also wondering before considering if I will give it try or not.

Like, I would like to know if it will be possible to have some romance with the handsome black-haired guy? Maybe even a three-way relationship with him and one the girls?

In other words, will there be Gay content? Already guessing the answer, but just to be sure.