Injustice G-ds Among Us... characters I'd want!!

As seen by the picture, 24 characters are supposed to be playable in this game. Batman, Catwoman, Cyborg, Flash, Green Arrow, Green Lantern, Harley Quinn, Joker, Nightwing, Solomon Grundy, Superman, Wonder Woman, Deathstroke, Lex Luthor (suited up), Bane, Aquaman, Shazam, Hawkgirl, Sinestro, and Raven have already been announced, so that leaves 4 characters unaccounted for! I personally would love to see certain characters fill those spots. My picks are: Cheshire, Cheetah, Mirror Master, and Poison Ivy!!

What do u guys think? What would be your ideal line-up for the remaining 4 spots!?

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EDIT: Deathstroke has been announced... YAY!

EDIT again: Lex Luthor (suited up) and Bane have been announced! Hell Yeah!!

EDIT again again: Aquaman and Shazam have been announced... wish I would have called it!!

EDIT again x3: Hawkgirl and Sinestro have been confirmed! Hooray!!

EDIT once again: Raven has been confirmed... guess that closes off the hero section.