they need baby doll or some unknown bad guy to be a lead bad guy over the normal list...two face has been done, riddler has been done, cat woman and penguin have been done, Mr. Freeze and poison Ivy have been done, even scarecrow has bee done,
They do need new villains, but the only villains you mention in this list that have actually been 'done' are Two Face and Scarecrow.
All they needed for the next film were villains that hadn't been dealt with in Nolan's movies
- and there's something to be said for giving Nolan versions of pretty familiar, top-tier villains like Catwoman - something The Dark Knight
kinda sorta proved with his take on the Joker.
I was saying Harley Quinn is always a cool character but she is ruined now due to the fact that nobody would risk playing the joker for atleast a decade, so no door open that can justify the Harley Quinn role...
Harley Quinn is both great and kind of pointless without the Joker. And the Joker, of course, has been done
, like Two-Face and Scarecrow, and need not be something the Nolan franchise returns to.
That said I think we'll next see the Joker whenever - or if-ever - the Batman film franchise reboots itself. He's one of the elements most likely to recur in any given incarnation of the Batman character.