(this plot only works if you forget annihilation )

Shao kahn now holds the steaks even higher (jump doggie! lol)
mortal kombat isn't finished, Shao Kahn has his own fleet of baddies
to pit against the good guys
He takes it to a personal level: if liu kang chooses to continue mortal kombat, he endangers the ones he loves, and his brother's soul, if he declines... the invasion of earth will comence.
Sub-Zero's brother joins the tornament to avenge his bro's death.
Being that mortal kombat is not finished, the evil specter that we know and love...Scorpion, isn't finished either, as long as a relative of sub-zero's is in the tornament.
Taking his sights off of liu once he understands his cause, sub-zero finds
his life in the sights of scorpion his brother's archrival, being that s.Zero never finished off scorpion, sub zero's brother will honor his brother by doing the job for him.
( liu, johnny, sonya, never left the island)
Johnny new match-up I think would be baraka
Sonya - Milleena
Sub-Zero - Frost?, scorpion
Liu Kang - Ermac, Sheeva, Shao Kahn

Liu fights shao on and in the temple of light,
Liu held by the throat by shao on top of the temple uses some cool brutality to free him self from shao's grip and throw shao into "the pit"

Yea