I'm guessing they'll introduce some new characters (because that worked out super well in the 3D games) and have you reclaim the souls of all of the Netherrealm zombies in story mode. Didn't this exact thing happen in the original timeline except that they were all Onaga's slaves instead of Quan Chi?
It seems like a lot of the same stuff happened, but earlier in the timeline.
I felt like I was watching Hot Tub Time Machine waiting for Jax to get his arms ripped off..and they didn't disappoint