Alright this is pure guess work on my behalf but
Here's how i think it will end up:
S - Kung Lao, Ermac, Scorpion, Stryker, Nightwolf
A - Johnny Cage, Sonya, Kabal, Jax, Cyrax, Liu Kang, Jade, Noob
B - Reptile, Raiden, Smoke, Kitana, Kano, secretmanwecan'tdiscuss, Sindel
C - Quan chi, Sub...