Honestly I think "abandoned" and "incomplete" are being tossed around way too much. A character not getting any more content isn't necessarily either of those things.
Like say...Clementine. Do I want Clem to get more content? Yeah, obviously. But is she incomplete?
Nah. There's no hanging plot threads, no unfinished arc. She's as fleshed out as a side character needs to be.
There are clearly some things still hanging - any of Bubbles' plotlones, characters we put in jail from Ryn's adventures, Evergreens story - and I'd call those incomplete if they never got worked on.
But, like, the pups on the farm in Harvest Valley? They're just...done. They don't NEED any more content. They may get more, but they're not unfinished by any means. Same with most characters on that list.
Most of the actually "unfinished" characters have stuff planned for them, there's only a few I'd actually call incomplete and abandoned (for instance, the Marked Mercs plotline).
Kinda this. Even the first CoC had a bunch of characters that had like, one, maybe two scenes, and a couple interactions in other scenes, and that was it. There are times in this game where it definitely feels like with some characters, they try
too hard to make it feel like they'll have importance after their specific events, but it winds up being "you get a new big tiddy bitch to impregnate with a bunch of nameless children". Some characters are just simple and don't need extra content to make them more interesting.
If there was one thing I wished would be more impactful on not only story elements but also gameplay, is transformative related stuff. And that's not even exclusive to this game either, that's also a TiTS thing too. Like you can get a full on humanoid dragon transformation with various scale colors, wings, and a tail, but you're telling me I can't have a dragon breath of different elements or a tail sweep? It's just there to make Daliza piss herself from how horny she is over scalies? Lupines have claws but can't use them in battle, yet NPCs like Garrett and Gweyr are literally designed to have powers using them?
Like, the only genuine impact transformatives have truly had in gameplay and narrative outside descriptors for sex and the like was in CoC1 where the mirror at end-game would either be like "you still look human despite everything" vs "damn, you look like shit after all the abuse your body took".