From the start I kept saying that Anthony was written as a caricatural piece of shit destined to oblivion, he always was supposed to be the first wall Myriam had to climb to be free.
So no, no happy marital sex with Anthony (even more so since he's definitely kicked out at the end of chapter 2), but some happy consensual couple sex there will be, FM or FF.
I said again and again since the trouble with Patreon, I changed the family setting to Myriam and Anthony not married and Myriam not the mother of Marc, I can't do two different games at the same time, the events would differ, and it would become hell for me to do write the game as I go on, with two different set of events happening (and I won't keep jumping back from a setting to another, what is done is done).
For the bestiality is just easier since it doesn't change the story, it happen or not, it's just that simple, it's not the case for the family setting and the incest.
But really, it's just a tag, all the events you liked with Marc are still there, and there will be more of them, just with the actual setting is all.
Though this setting made me think of a strange fetish there could be between them now with a "fake" incest, Marc wanting to call Myriam mom even so she isn't (anymore) and her calling him son, giving a virtual incestious feel to their relationship, incest becoming a "kink" for the character themselves. ^^
It's just an idea for now, but it could be funny, though the question is, would it fly with Patreon...
