You make valid points but you're only seeing the downsides of a remake. You're only mentioning examples of remakes that went horribly wrong. And yes, there are many examples of it. But you're also downplaying the fact that there are also many examples of remakes that have gone on to being very successful, if not even better than the original.
"Now think back to this game. Think back to what you love about it."
- This is exactly what I mean! You're telling me to think back to this game and what I love about it which makes no sense because when I do think back about this game, all I can think about is how it tragically ended without no appropriate ending to suffice it.
And you are right, this is a story heavy game, that's something that both the artist and programmer can work on together. There are plenty of talented people out there who can program it, create very nice art and deliver a great storyline, but at the end of the day, it's really about whether they have the drive and effort to put into it. If a remake does happen, you can always choose not to experience it yourself because of your opinion that remakes are just utter trash compared to originals. My goal if anything, is to see this game continue one day if possible. (shrugs)
I'm not seeing only the downsides, I'm trying to highlight the fact that even people with experience, money, and good actors isn't enough to make a good remake or sequel. It's extremely unlikely that you, or anyone other than Ancho, is going to get the game to a point where it feels like a proper continuation. It's been remarked by people that Ancho's oddly organized and consistent in his efforts. Dude had like the right combination of skills and drive to make everything work.
The thing is that while everyone has their own strengths, they also have their own pace and style. It's going to be extremely difficult to try to match the pacing and feel of the game, especially if you have multiple hands involved. It's not just a matter of coding, drawing, and writing, but also how effectively the team works together, which takes leadership and management skills. With whoever getting involved not having a personal stake in this project, there's nothing really binding them.
I can't imagine this project being even a mediocre success if you, who's supposed to be handling code, isn't even prepared for the role. What happens if your artist bails or loses interest? Do you refuse to continue learning Ren'Py until someone else steps up? And what if the story and art guy consistently is on top of things, but you're not because Ren'Py is harder than it looks and they get tired of waiting for you? It doesn't look good.
But if you really have a creative passion, you should probably work on some small original projects to even see if game development is something you even want to do. How much of a massive waste of time would it be for everyone else involved if, after some time, you decide you don't like your role and no one else steps up? You're pitching a big ask to the void asking for someone with good art skills while you only offer the promise of learning skills you don't already have. I would think my fears are very grounded.