crippling knife sounds cheap, it's gotta be highly punishable in some form.
Personally, I love Sareena. She had such a good backstory, and I had hoped she was going to be in MK9. Although she wasn't, I at least appreciate her making a cameo appearance. I hope she's in MK10. I used to really enjoy playing as her in MK:A.
Chances are, she will be because she works for Quan Chi and the story will be about Shinnok and Quan Chi working together.
It really depends on how many they can fit in. Shinnok will be in, Quan Chi probably as well, Noob will be in, I would like to see Ashrah in as well. Sareena SHOULD also come in at long last. So that is five from the Netherrealm. Kia and Jataaka I'm not really taking into consideration.They may be in it, but those two may not be playable