Okay these are my ideas for the third movie:

OPENING
-They should introduce each character ala MK Movie style.
-Liu Kang could lose to Kung Loa in a tournament Bo Rai Cho could make an appearance.
-A chase scene with Sonya and Mavado on a rooftop
-OIA investigation led by Jax and a big fight w/ Nomads
-FIRST FIGHT = Sub-Zero and Scorpion
-Liu Kang should fight Shang Tsung in the Netherrealm
-This Ash guy should be Scorpion's best friend, a specter also
-Sindel murdered by Reptile or maybe Baraka
-Drahmin and Moloch should appear
-Maybe, just maybe, Quan-Chi could change into Kintaro