Boppin 'em on the Head
This character has a strong upside. Like Bruce Wayne, Jaina Hudson is a rich socialite. An Indian American daughter of a diplomat, and heir to her mother's Bollywood money. She has some kind of condition that allows her to split herself into two separate entities, forming a second persona, the White Rabbit. The character hasn't been developed aside from this. Her motives are a mystery, the origin of her powers are also undisclosed. How she is connected to Bane in the first place is also vague. She has only 24 appearances in the comics, usually in cameo.
The White Rabbit persona has obvious parallels to other established Batman villains. The White Rabbit is a character from Louis Carroll's Alice in Wonderland. During the Gotham Resistance story arc after Batman Metal, she is shown with the Mad Hatter. This may be her last appearance in 2017. But it does tease a partnership or membership in the Wonderland Gang and collaboration with the Tweeds, the Mad Hatter, Red Alice, and others.
I feel like this character has a lot to offer if she can be developed. Jaina Hudson can be an effective femme fatale for Bruce Wayne in the mold of Selina Kyle, Natalia Knight, Talia, April Clarkson and Jezebel Jett. Her weird superpower duality makes her a natural for a mystery ending in a double cross.
If another writer decides to pull this character out of obscurity, I think she'd be an interesting villain to explore, with or without the Wonderland Gang. Is she an agent of chaos for hire? an assassin? a thief? a serial killer? Maybe even a member of the Court of Owls? Does she have a deep knowledge of Chemistry and drugs, or just received these from other villains? So many questions. Her brief and underdeveloped previous appearances allow her to be created again nearly from nothing.