Yeah, Steph isn't lolinat all. I'm really turned off by characters that look too young and she doesn't give me any of those vibes. More like a bratty little sister than outright kid.
As for the VN itself, it'll likely be abandoned unfortunately. Whatever did or didn't happen to the dev, I understand life happens but not being able to make a comment or do any work at all in almost a year shows where it's priority is for you.
Even if he were to pop back up I'd never trust him. I'd always be ready for the next year long vanishing act.
He should pass it off to others that want to work om it for a percentage of the Patreon money. He brings in $2,000 a month when working? Give it to other devs that want to finish the VN for, say, $500 a month. Free and clear. They take 75%, you take 25% for the basic idea and no need to work on something you're bored of and no need for arguments about lawsuits or whatever. Hand over the models so nobody has to approximate them and be done with it.
Not sure why more devs don't do this. When clearly done with a story, don't just disappear. Hand it off for an agreed sum if it makes money.