NTR is out of the question anyway. The developer doesn't like that sort of thing, and neither does the majority of its community. I am a fan of such content, but it would actually not fit here. The developer should really keep his hands off of this.
Swinging? Maybe, if it is well written.
What his games desperately need these days is a breath of fresh air. I'd be in favor of a significant update to the storytelling, NLT Media's biggest weakness. Sure, the dialogue has improved considerably over the course of the games, a lot has changed in terms of atmosphere, too, even if nothing has been able to dethrone TON so far.
But the bottom line is that the story is always the same; it's pretty worn out by now. Nobody can see the "sex virus" thing anymore, even the supernatural part has been pretty much squeezed out. In my optionion it's time to finally come up with a worthy ending and try something completely new.