I think they may reveal some kinda inj port like you said but idoubt its a crossover. Remeber in MKvDC , DC comics had a problem with fatilites on they're beloved hero's so that's why Midway had to cut back and the game was rated T, well Ed already confirmed Fatilites and by that trailer we already know that the game is going to be gory so we can cross out an MK x Inj