Fist off, I know nothing in programming 3d games, so this idea could be impossible... it'S just a though.

To save space, as Boon said, could the make an evil Kitana, let's pretend. And so, Kitana would have the same look as Mileen but in Blue and a long Ponytail.

And follow the twin assasin, twin sister thing once again?

and Kitana could be, once more, faking it to shaoKhan and stick with her friend Jade and Kindom, Edenia.

Just a wild thought.