YouTube - Mortal Kombat Vs DC Universe First Trailer
22 Characters (supposivly, with 11 from each side)
No Fatalities
Completely reworked the fighting engine/system/mechanics
"Visual Wear" (basically the more you beat on the dude, the more you'll see it. Masks chip apart, slouched over when near death, slower movements when near dead, that kinda stuff).
Sounds / Looks ****ing stupid.
YouTube - Mortal Kombat vs. DC Universe Video Intervie