Firstly, I agree that you’re correct to observe the trend in modern remakes recharacterising villains as something else; beyond that I think it’s a more nuanced topic than what’s being presented here, because while some movies can just be lazy and sorta gaslight the audience over it, other times it’s really not that harmful.
I assume you’re talking about Predator: Badlands specifically, going off the wikipedia description, but I haven’t seen it so I can’t address it. Ash already discussed how Maleficent is more of a “What-If” than a character assassination; sure she had a traumatic backstory in her own movie retelling, but it’s used as a way to explain rather than justify her reason to be vindictive at first. The story doesn’t lie and say she cast the wrong spell or that Aurora’s fairy godmother’s were actually evil. Overall, the movie does what it sets out to do and accomplishes it well.
In regards to Venom and Cruella, these characters are very different to their source materials. Both stories act like spinoffs rather than prequels and don’t even tackle the battles their villains undertook in their original stories — Venom doesn’t fight Spiderman, Cruella doesn’t meet a puppy hoard at all — so these are basically just original stories using familiar names as a leaping board for the audience to know who they’re seeing, but nothing else.
So yeah, Maleficent falls into “fan fiction” territory whilst Venom and Cruella fall into “original story but I copied your homework to write my protagonist” and that’s it.
Without any research, I imagine this story would fall into the second category, because writing in the first could possibly be really dangerous or maybe a quite significant tale on perpetuating abuse (but in that case you wouldn’t write it as a Cinderella story instead of being standalone); which means it’ll just be a more or less basic feudal setting with a flawed regretful protagonist and magic existing without it feeling like a deus ex machina because the Cinderella story established its existence, but it otherwise will be a separate story entirely and that seems lazy.