Of course the writers could always give her a completely new story since she really have anything other than some random cameo in the story (If I remember completely, she makes one or two background appearances). But what is there to do with her if she is to return for X. What would her reason to be in this game if she were. And to be honest, I could see her in this game because she did have some dark qualities with her... despite her costume was horrible. (To be honest, I felt that her outfit, even her alternate in the vita version, was as horrible as Kitana's secondary)
The story should be much better than having her be an emotionless, personality-less weapon that will only be under command from Shao Kahn. To be honest, I was really, really disappointed that they made her be associated with Kahn, like we need ANOTHER character work coincide with him. I am just really confused as to what could be a possibility for her to be in future games since Kahn is dead... or at least assumed to be dead.