From my communication with GuterReiter, I got the impression that's not something he wants to have in his game.
And frankly, I don't think it would befit the relationship depicted up to this point.
One of the design goals I had for the mod I want to make was not to "break" the game, neither with pacing nor with the way the characters act - especially Nicole and Steve. This puts quite a few restraints on what I can do. GR assured me he'd be fine with whatever I decide to create, but I didn't want to make a "for the giggles" mod doing whatever, but one that expands the storyline in a believable fashion, with some content GR hasn't thought of and with some content GR cannot pursue in the game due to rules imposed on him (mostly by Patreon).
Anyway, sorry for the segway, I just wanted to give a reason on why I believe that's not where the game is headed.
Reiter told me, though, that he was a little bit disappointed by the games lukewarm reception by the "general audience" and figured it might be because Nicole didn't go all in on the "whoring", whilst my position was this was exactly what makes the game what it is. As others have remarked, TAC took the other approach, and judging by how that game proceeded, I'm not sure it's a surefire way to success to pursue such angle.
If I were to make a game like this myself from scratch, I'd want to have some odds - you often have this in japanese games with NTR theme. Meaning, there's more bad endings than good endings, and the fun in gameplay (insofar you want to use that word in VNs) is both finding the good ending(s) and seeing the bad endings play out - cause for the player, a bad ending can be quite enjoyable, obviously.
Ouch, another segway - to sum up again, I believe GR has made up his mind about EG and will stick to his arms until the end - time will tell whether I'm correct in this assumption or not.
