People need to get over their sense of entitlement and passion for characters of the past to the point where you claim you will not buy the game and stuff like that. Try to let it go, it's just a game! I am trying to let go of my favourite Baraka. Hell, it wouldn't even bother me one bit that he is not in, if it wasn't for the achievement photo where he looks amazing imo, but that's beside the point.
The point is, people should just take a deep breath, let go of the characters and roster itself, and just look at what they have done with each single character. Just watch the videos, the streams and see how detailed, varied and amazing the 3-variation system is. It seems like NRS is really outdoing themselves as far as making the most simplistic / old / bland characters feel like new and heavily improved! Moves and looks are just 100x better than any previous game and it's not just because of next-gen technology.
I get that you want one or several of your favourite, but try to see this as a new chapter, a whole new game and maybe finally moving on from nostalgic feelings of old MK games and certain characters while trying to appreciate some old characters you didn't really like / play with + the totally new. I recently made the mistake to download the arcade kollection and played MK2 & MK3, boy how I wish I hadn't. Those were some terrible games compared to this. So little moves, computer reacting to what buttons you push, beating you with just a combo of fists one after the other.