At first, I was like: OMG! Playable DC characters in a fighting game.
Then, I was like: Crap! It's Mortal Kombat.
Finally, I saw some of the DC characters in action, and I was like OMG! They killed the DC universe.
Take a look:
http://www.destructoid.com/your-first-look-at-the-dc-heroes-appearing-in-mortal-kombat-82468.phtml