http://n4g.com/news/732803/grtv-mortal-kombat-interview
Ok, skip to 4:00.
Now this could be me just wishful thinking, but his response makes me think perhaps a 360 exclusive character is in there, or is being worked on.
My guess would actually be master chief.
Spartans know martial arts, so that's the fighting covered.
Specials
Energy Sword
Bubble Sheild/Armour Lock (like jades invincibility)
Plasma Grenade (like cyrax's bomb except it sticks)
Rocket Launcher (or another gun, like jax)
Jet Pack (aka sindel and ermacs levitate)
Active Camo (like reptiles invisability)
Evade (effectively a teleport)
Air Strike
So the scope is there for MC ... some of those more fit elites though.
Also, there is a yello, red and now blue cyborg in the game ... missing a green one 
