There is an abundant database of Characters than never got a chance of being playable, i just dunno what is holding NRS into this matter, they could revamp any side characters in a blink, it would be far more interesting than increase the data base of MK with anything out of the blue right now:
Kia (Demon, we're yet to see demons in MK)
Jataaka (Demon, can be a samurai themed character)
Sareena
Firegod (A different god that is not Raiden or Fujin)
Watergod
Earth god
Great Kung lao (The original Kung Lao)
A different Monk that is not Lao or Kang lineage
Tasia (A black Dragon member that is not Kano, Tremor we saw it coming)
That Shujinko friend in deception ( A shaolin character not related to the Kung Lao Family)
Delia (An Elder God that is not Shinnok)
Argus
King Fucking gorbak
Before giving us a character a new character with such a short time of fleshing them out, each of mentioned above has his/her background well built to be a good playable character.
No offense to who ever like Jacqui and Kung jin, but i'm still trying to feel this characer whithin MK as a whole, i just don't like them, the other new choices aren't much better either aside From Kotal Kahn who is easily the new best character introduced in the game and Cassie, Erron Bringing a gun into a fist fight its kinda bleh, but i feel erron the same way i see Skarlet, both characters have a lot of potential to be fleshed out into something beautiful. Skarlet can be put into any direction NRS sees fit, they just need to pick the right one, same with erron.
But no, lets just revive Kabal, let him have a normal live, so he can have a kid who can NDC without his mask.