@lukeweizer: This is the way I heard it, not sure if completely true. Injustice was gonna be a side game at NCR(like how BlazBlue or KI is being run) because it hasn't been getting large enough turn outs . This caused the Test Your Might forums where most of the Injustice/MK players hang out to throw a fit and boycott the tournament. The NCR crew was then basically forced to cancel Injustice because instead of getting a small turn out, they got no turn out.
That's dissapointing They should be showing how interesting their game can be, like Smash and KOF did, instead of boycotting the entire thing because they didn't get the primetime stream.