The developers of the game won't provide an incest patch. Some unrelated 3rd party will be, call it the incest-patch fairy or whatever you want.I have downloaded and unzipped the revised release of v0.92 provided on Patreon. After looking through the script for Episode 1, the developers have gone the next-door-neighbor-to-legal-guardian route. THERE IS NO PATCH PROVIDED WITH THAT DOWNLOAD TO RESTORE INCEST TO THE GAME.
Here's the snippet from the code that describes the relationship:
She's your best friend and next door neighbour for as long as you can remember, born on the same day as you and only two hours older than you. And to her, that's enough to always break your balls. But when your parents passed and named her parents as your legal guardians, they took you in, even gave you a room in their house, and held you by the hand till you got to college.
I do not know if the developers plan to provide a patch (or the original version) from some source other than Patreon.
There were a few scenarios in which between they were going back and forth as to how to de-incest, but it was always fall on Patreon if they accept the new scenarios or not. The story still makes sense even with the changes, but it's need a few adjustments here and there. The biggest issue Ptolemy had was the "Why do they have to hide it if it's not incest", without changing the core of the story too much, reworking something this big from scratch was never an option.