They already have DLC planned as fighters and what not. I mean DLC is going to far when they are leaving characters out of the product just to charge for a key to unlock them in the final game.
DLC was meant to enhance the game, not find ways for the developers to cash in even more. And it can be argued that "Hey you don't have to pay for the DLC if you don't want it" But they make you feel like your rocking an incomplete game without it.
Here's the new MK! Then bam a month later, hey kids if you wanna play as Baraka, Cyrax, Goro, Kabal, and Mileena, cough up $5. Argh.