Amazon
Noob
You kinda took the words right out of my mouth.Because just like there are essential male characters in DC there are also essential females. If we can have both Harley and Joker why can't we have Batman and Huntress (if you don't want batgirl).
Some essential females that haven't been announced IMO are:
Huntress
Starfire
Star Sapphire
Black Canary
Circe
Ivy
These females are just as intruging and poweful in their own way as their male counterparts. im all for diversity as long as it fits witihn the context of the game, and we are not putting in random characters for the sake of randomness. if they are popular/cool characters... that fit the story and gameplay well, then by all means add them in.
Out of your list above, I would agreee with ALL of them, but if If I had to cut it down....
Huntress and Black Canary defintely, and I am a ltitle biased but Circe and Zatanna as well, magic users are currently under-represented.