I mean it is what it is. I'm here to download and play your game for free. Just like 99.9% of anybody else here, and including the ones who you are going to find crapping up your game thread on a piracy board with the obsessive behavior and/or overthinking about things that the 99% of people who *do* actually end up supporting these game don't. Show me a game with 1000+ patreon supporters and I'll show you a game where the meaningful data you see as a dev will always support that.
That said congrats on being that much closer with the upcoming steam release, and achieving the win pretty much anybody developing one of these games is after in respect to positioning yourself to not feel that inner need to give 2 craps about the always overly vocal f95 drama that gets played out way too routinely here
But yeah, if you are going down the custom content route I do again expect that person I quoted to absolutely hate the direction it ultimately ends up taking the game too. Since if you look at what all the other "good" english games have been doing in that respect lately, and seeing wildly successful support growth as a result (which of course sees that massive growth also come with at least 20 pages every update of people *here* "IT DOESN'T MATTER IF IT"S OPTIONAL OR SKIPPABLE!!!!" complaining about how the game sucks now because of it lol), it's pretty clear what's the hot interest sell for non canon add on content. Which certainly isn't going to be more same ol' same ol repeat stuff of things already found or planned in the main game.
So unless upholding the happiness of a bunch of vocal people pirating your game every update is ranking #1 on your own priority list.....