I think Gnoomus is right. I think you should just stop adding stuff people like but you don't, and stop thinking what will sell and what won't. If you don't like "almost caught situations" don't put them in your game just because some picky annoying dude suggest you to do so (yes, I'm talking about me). I think you should do a NTR game with all the things about NTR you really love, and don't put anything you don't, the same goes for futanari. If someone suggest you to add something they like and you like it then add it, if you don't like it then don't add it.
As long as you do a game with a strong NTR feeling and with a good futanari character, with all the things you love about both genres, and some other things people like and you don't mind, then your game is probably gonna be good.
The only thing you should avoid at all cost is to half-ass the genre (like when you said that you were thinking into doing the NTR avoidable).
When I played
Boku Mama x Tomo Mama Koukan Hameppu Life I couldn't enjoy it, even when I knew that the NTR was kind of dissapointing. I tried to play it as a Straight-Shota X Milf fan only, ignoring it was a NTR game, but I couldn't really enjoy it that way either. There was this kind of annoying feeling whenever I played that game, I couldn't help to feel it was such a big waste. That's because ANIM tried to pleased everyone, making the NTR avoidable and it felt like a half-assed NTR-shota game. And that comes from a big Straight-Shota fan as myself. If you want to make a NTR game, with futanari or withouth it, make sure for it to have a strong NTR feeling, or else it would be better to make a futanari vainilla game.
Even if you make a futanari vainilla game it would be great as long as you make it with all the things you as a futanari fan love about it. In fact, there are no good games with a dominant futanari out there. In most futanari games, the futanari character is the submisse one. I would definetly pay for a good futanari game with a dominant horny futanari that would fuck girls to oblivion (like the one in
Spermatank for instance), even if it's not NTR. And that's a good example how a genre can be popular even if there are not games like that in the market. Futanari is really popular, but strange enough, there are not many futanari games out there.
To summarize, my point is: If you make a NTR futanari game, make it so that it would be good as a NTR game alone, or a futanari game alone. That way you won't only please people that like NTR and futanari, but also people that like one of the two and don't mind the other. And don't try to water down one of the genres to appeal people. Finally, make it with things you love about those genres, not with what other people tell you to do (at least you like it as well, or you don't mind it).
You must be hating me by now, but believe me when I said that I'm one of the people that wants you to succed the most. Making something that didn't go well (Swing n Miss) and triving to keep going, making a new game instead of giving up is something admirable, I trully respect you for that. If your game is good, you will gain yourself a new supporter (me).
Finally, the wife looks freaking hot!!! Is this a diferent artist from the one that design the futanari?