Batwoman would be awesome :D !!!!!!!!!!!!!!!!!!!!!!!!!!! But I don`t know any actress that would be good for her O.o

 
No matter who the villain is, it is still a Batman movie, not a Catwoman or Black Mask movie.

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not every movie needs a lead female

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Harley Quinn for sure. 
who to play her? I have no idea as long as its not Megan Fox

Batman doesn't really need another love interest in the movie. Steals too much attention. Doesn't fit Bale either. Well, thats just my opinion.

 Nolan is not a talented artist, and his attempt to focus on 'realism', as usual with such attempts, misses the entire point of costumed superheroic fantasy. And while Christian Bale may have been a talented child actor, his charisma and acting ability has vanished with age.
 
The previous films were exercises in mind-numbing boredom and so little restraint was exercised in editing that it made the whole of them seem like hollow, masturbatory gestures for the director.
 
I for one hope we don't see any kind of female lead in the upcoming film of any real significance. I enjoyed most of the 90s series of Batman films, and the female leads in them were generally interesting and contributed to the story in some meaningful way. The strongest instance was Batman Returns, which really should have been called Catwoman Guest-Starring Batman, since she essentially carried the whole film.

The weakness of the Nolan films means that either the character would be so insignificant as to be negligible (as they have been up to now), or a strong and likely well-loved character downplayed to the point of being insulting.

I don't think the al Ghul family need to reappear in the series; once was painful enough. I'm not a fan of any of them, but the way they were handled in Batman Begins was embarrassing. Huntress would not be a good fit and would likely come off as poorly as possible. Batgirl or Batwoman would likely be insulting portrayals. Catwoman would either dominate the film (as she did in Batman Returns) or likewise be downplayed into a pale imitation of who she should be.

Batman really doesn't necessarily need a romantic interest, but he does need someone to provide viewer identification. Presenting him as a sociopathic nutjob only works when there's something a bit less bat-poop insane to identify with, like Robin. But of course Christian Bale has repeatedly whined that he will quit if one is added.

I say move for Robin and Bale, don't let the door hit you on the way out.

No, but Hollywood cliche demands it, & I'm sure if they tried to avoid casting a piece of eyecandy to lure in the male 13-25 crowd, then some studio bigwig will demand a script rewrite so that it does.

There should be a female lead.  I don't think he necessarily needs a romantic interest, though. 

" Batman doesn't really need another love interest in the movie. Steals too much attention. Doesn't fit Bale either. Well, thats just my opinion. "  

"  Nolan is not a talented artist, and his attempt to focus on 'realism', as usual with such attempts, misses the entire point of costumed superheroic fantasy. And while Christian Bale may have been a talented child actor, his charisma and acting ability has vanished with age.
 
The previous films were exercises in mind-numbing boredom and so little restraint was exercised in editing that it made the whole of them seem like hollow, masturbatory gestures for the director.
 
I for one hope we don't see any kind of female lead in the upcoming film of any real significance. I enjoyed most of the 90s series of Batman films, and the female leads in them were generally interesting and contributed to the story in some meaningful way. The strongest instance was Batman Returns, which really should have been called Catwoman Guest-Starring Batman, since she essentially carried the whole film.

The weakness of the Nolan films means that either the character would be so insignificant as to be negligible (as they have been up to now), or a strong and likely well-loved character downplayed to the point of being insulting.

I don't think the al Ghul family need to reappear in the series; once was painful enough. I'm not a fan of any of them, but the way they were handled in Batman Begins was embarrassing. Huntress would not be a good fit and would likely come off as poorly as possible. Batgirl or Batwoman would likely be insulting portrayals. Catwoman would either dominate the film (as she did in Batman Returns) or likewise be downplayed into a pale imitation of who she should be.Batman really doesn't necessarily need a romantic interest, but he does need someone to provide viewer identification. Presenting him as a sociopathic nutjob only works when there's something a bit less bat-poop insane to identify with, like Robin. But of course Christian Bale has repeatedly whined that he will quit if one is added.I say move for Robin and Bale, don't let the door hit you on the way out. "  

The rules of movies say it does. But I personally think it doesn't.
 
I would actually like a female "lead" to show up at the end of the movie. Like this: Batman manages to redeem himself and at the end of the movie - when he has stabilized Gotham, he does some business as Bruce Wayne and meets Selina Kyle (cameo by a great actress who is not a big star in Hollywood). Then the movie ends.
 
It would be a nice way to wrap up the trilogy; this story ends but Batman's work continues as one of his biggest love interests enters his life.

   @HexThis 
I agree completely. 
Catwoman is not just some chick who EVER played the damsel in distress or was part of a sappy love role. She is multifaceted in all the right ways, which I feel would greatly benefit the final movie. 
a.) She is a lot like Bruce in many aspects: both are costumed heroes, both are highly skilled fighters and a force to be reckoned with, both base their costumes and identities after a certain animal, both are orphaned and have a history of personal pain/grief, both need love. 
b.) While Batman not having a love interest would be different from the other movies, it would not necessarily be a good idea because he is human and needs love like everyone else. Protecting Gotham and kicking ass would never really be enough for him, which is why Batman has had great love interests in the comics period. 
c.) Their relationship would not in any way be a sappy love story, they would have a common background (for the most part) and oppose eachother enough not to be too much alike. Catwoman, though a catburglar, is not evil or a true villain. Though somewhat morally ambigious, she is more like Bruce than anyone (no offense to Talia fans...) and they love each other without saying it. Besides, why wouldn't Batman deserve to find love after Rachel's death? With all he does and sacrifies, he is more entitled to a suitable, but  still very interesting, love interest. 
d.) Though on his side when it all boils down, Catwoman does not fit in Batman's box or any other box someone would want her to be. She exemplifies independence, sassiness, sexiness, and the other qualities of a strong woman. Plus, she's no damsel in distress, which would serve a nice change of pace from Rachel's character. 
e.) They are both rediculously hot and look good together (you can't deny that folks! lol). Plus their relationship has never been conventional and has always been interesting. I think of Selina as Batman's soulmate because not only is it nearly impossible not to include her in any Batman installment, but they are always drawn to one another.  
 
If possible, they should bring in Talia or Harley (both of whom I also love) as the villain and let Selina serve as his foil, ally, rival and/or love interest. It is the FINAL film after all and it would be an insult for the great series to end with Batman fighting alone in a fight that will likely never end. Plus we ALL, men and women, are dying to see some girls kicking a$$ in the Nolan series!

Catwoman !!!! or Barbara Gordon !!!!

Nah

Wrong.

well now we know it's catwoman