Okay, so after thinking for about a half-hour and reading comments and theories, I have found the abilities for Cinder, Mercury, Emerald, and Neo. (aka Team CMEN lol).
Cinder: Heat Glass and glass illusions. Remember how Torchwick escaped on the highway? They shattered like glass and reappeared on a aircraft. Who was shown flying the aircraft before? CINDER. And being based on Cinderella she would have to do with glass. She was the pilot the second time too. Where her heat powers come from is still undetermined but could do with her attack on Autumn. (Cinder never shows one eye and one of Autumn's eyes has marking over it. Seems like classic Naruto eye-replacement to me.) Her disguises during the dance seemed to be created with magic. Not only that but, REMEMBER HER FIGHT WITH GOODWITCH?!!? That was definitely magic what with the magic circle and stuff.
Mercury: Mercury Poisoning. He can cause people to become disoriented or make them have false visions as seen with Yang in the episode Fall.
Emerald: Shape-shifting. She's a thief and and showed this ability in her fight with Coco.
Neo: Teleportation. Shown during the train/subway scenes.
Discuss what you think.