i think it should be an alternate history that starts after umk3 continuing that feeling of the old mks including launching arcade machines and it should be with digitalized actors or would be no fun at all but it should have a huge resolution

I doubt they would want to make a 2D game when advancements in technology allows 3D games. That would taking a huge step backwards in terms of progress and a dumb move for any game company or any technology company for that matter. I doubt they would go back to 2D unfortunately, I think the only way forward is 3D from now on, then 4D in the future, 5D and whatever technology allows. 2D is gone forever I would think. Which is a shame because Super Mario world were some of the best games ever, Mario has never been the same... But if they were going to make a prequel to Mortal Kombat then it should involve the rise of Shang Tsung perhaps and how he became such a fearful figure in the first MK game.

I'd like another 2D game but chances are they would ruin it anyway like they did MK4, MKD, and MKDA. They'd throw some characters on there add some fatalities and a story mode, test it for a week to get 1/10th the bugs out and release it as Mortal Kombat Ultimate Alliance of Deadliness or something. It would be crap because thats all they seem able to make now.