NTR/NTS is not planned to be implemented. Right now I don't really see the point to implement another male character into the game to "compete" with the MC for girls.
Hmm, Yes. I did say futa is planned, but I can't reveal much since it would spoil future content or story. What I'm willing to say though is that yes, the futa will have scenes involving sex with girls, I think it would be weird to implement futa without that in mind. But if you are worried about the futa taking MC's girls (because yes, that would be considered NTR), then don't worry about it, that will not be the case. That's the best explanation I can give you right now.