6 months away and still 15 characters to reveal, get this shit going NRS.
It seems some of you are still confused about how this works. They will never reveal them all. Never have. Never will. Major characters will get trailers, minors will only be revealed as punching bags in major characters trailers. One or two may get screenshots or paragraph in a magazine but we'll spend months playing the is he real or just a boss / costume / cinema / cameo game. Finally, there will be at least one character who will simply be ignored in press, and we will only know about because of an achievement, a leak, or whoever finds a street date breaker first and streams it.
All we can hope is that nobody relevant (who gives a shit about meat or mokap, really) requires 3+ hours of story mode to unlock. They seemed to get away from that with Injustice, but MK is their flagship secret hiding game and someone is bound to still be salty about that file dump that obliterated all of MK9s mystique a month before release.