Joker's Daughter?

http://batman-news.com/2013/04/18/surprise-new-52-announcement-the-jokers-daughter/

This morning, DC Comics updated their new blog “What’s New in The New 52″ with this character design for “The Joker’s Daughter” accompanied only by the phrase “Something evil lurks under Gotham City and it wears the Joker’s face.”