>>724625384
Much of the simplicity of BB as she is now would get lost in the revision but I'd change her from human to another iconic horror creature; a cursed doll and payoff what began with proto Anita.
Make it so humanoid decoy dolls are used by Hunters to lure monsters into booby trapped homes.
One of a little girl comes to life for some reason, maybe from all the cursed souls and blood soaked up or being possessed by a Marionette.
She either thinks she's the soul of a murdered girl trapped inside the doll OR doesn't comprehend she's a doll even if told.
Lastly change her apron to black and have her raised by the same nun as Felicia to pair them as very different, begrudging foster siblings.
Despite the aesthetic change she'd retain the same moves and bloodthirsty nature, but fuzzed up from whether it's nurture changing her soul or the nature of her soul spilling out.
Also have bad luck happen to people around her randomly, but it's not clear if she's responsible.
Have the truth of all these mysteries hinted at in quotes and her ending but never resolved like Talbain.
Merging elements of Chucky from Child's Play, the Annabelle doll and a twisted Pinocchio tale should generate enough story material, intrigue and pathos.