Hopefully when you play it there will be some sub-bosses, like characters you can't learn styles from, to reach certain areas. Ex:
Earthrealm:
GORO - Shang Tsung's Palace
Outworld:
KINTARO - Shao Kahn's Throne Room
MOTARU - Centaur Domain
BLAZE - Incubation Chamber
Netherrealm:
MOLOCH - Shinnok's Throne Room
And what is this I hear about Shinjuko entering Shang Tsung's tournament? I hope that you can enter other tournaments too. Maybe the tournament fights will be mini-games, after all, there was a picture of a young Shinjuko fighting in the Dead Pool.