Speculation on the Dark Knight Rises villains

My batman history is a bit sketchy so forgive me if i am wrong about some of the things i wright. i've heard people talking about all of the villains that might be in the dark knight rises. the riddler, two face, talia al ghul, and catwoman but i think there are a few more logical villains. i've heard people talking about all of these different villains that they want to be the new dark knight villain. but with the first movie they had two villains (scarecrow, and Rhas Al ghul) and they somewhat teamed up to accomplish a common goal. they used villains that were never used in live action movies before as far as i know. in the dark knight they used villains that had been used in a live action movie before (the joker and two face) and they too somewhat teamed up to accomplish a similar goal. but the difference with these characters and they originals is that Nolan put a new perspective on the characters. now i have heard people saying that Talia Al Ghul might be in the dark knight rises because her dad (Rhas Al Ghul) was in the first one and batman was the cause for his death. but what i have noticed the most is that many people have not said anything about a second villain. the first two had two main villains so why would Nolan break the cycle? i've seen fake posters for the new movie on google images about multiple villains but there was one that nobody seemed to mention except for these posters. what if they had harley Quinn team up with Talia Al Ghul?i think it would be the obvious thing to do seeing as the mastermind from the first movie was killed and batman didn't save him so his daughter would naturally want revenge. in the dark knight batman was the reason joker went to jail and correct me if i'm wrong but didn't harley Quinn originally work at Arkham asylum, treat the joker and then fall madly in love with him? this is all just speculation but i think it would be logical to have Talia Al Ghul team up with harley Quinn because they are both deeply connected to both of the masterminds of the two movies. don't get me wrong i would love to see the riddler or another villain in this movie but the logical thing to do would be to set two unused villains on the table. i've read that they have two female leads but they haven't said if one of them would be the love interest and one be the villain or both of them be a villain. Or Talia Al Ghul be the love interest until she realizes batman it Bruce Wayne.

just so you know, i do not have any sources to interview so this is all just an opinion article but no one has posted anything like this so i thought i would throw this out there so other reporters could investigate it.