Actually, if you look in the thread (easier, searching for "patch", though may still give you a lot of results, I think), there is someone who said time ago he did some minor modifications, and continued playing having the game roughly as originally intended, with Marc as son, thus the incest.
The same person indicated that if there is going to be content with Marc in future release, and the person in question sees a way to continue doing the same kind of modification so that the incest element stays in, he will try release a patch, after the March public release of the game with Prometheus patch (that would be 3.03, if I count correctly), and if he can find the time, continue doing the same after, at least when there is Marc content (or any reference that should be adapted to keep the incest element).
Doing some stuff on one's computer is one thing, releasing it to others, another matter, requires at least a bit of testing.
Zorlun did not say anything against that idea - he did not try to kill the idea.
However, Zorlun cannot be involved in any way to such an attempt, even just publicly/"officially" endorse it, even less help with it, because Patreon told him clearly that if he is anyway involved in that, even on a different platform than is not Patreon, they will kill his Patreon account, and he needs the income from that.
That also means that, even more since he will not be the one doing it, he will not be able to support such a patch.