Christ, I truly hope you are wrong. This is among the last endings I'd like to see, but I admit it's not unlikely.
There have been lots of people going into the story writing game with noble attempts...only to be remembered in its failure...
MK franchise have had their share of storytelling failures.
MKX could be another one...
If those leaked Bios are true, then it says Quan Chi flees(with the remaining revenants) and leaves Shinnok to do battle with Raiden and them. Sounds like a legit quan chi move.
Then in the trailers we see dead Kitana and Sindel fighting Cassie, so we know kitana is STILL dead 25 years later.
On the previous story stream, dude says it goes through Kotal, Mileena and 'a new force'. This "NEW" force is no doubt the "returning char BB" Boon spoke of.
And if Dead Kitana is fighting cassie at the Shaolin temple, that MAY point out that Quan Chi returns later in the game.
and possibly resurrects Liu kang as it said in his leaked Bio...
at the temple scene, its seems that EVERYONE is there: Kotal and a few of his guys, Cassie and her guys, Mileena is probably dead by then so she's not there, only other guys I see showing up during this scene, could be some of the klassics(raiden, cage, Lao, jax, kenshi(if he's not dead already) to come help.
So im guessing Either Liu or Quan Chi is the last fight...but im guessing Liu is the last 'gameplay' fight and perhaps Quan Chi's death is cut scene?
But who kills Quan Chi(IF the death list is legit?). I can see but a few: Raiden, reformed demon Liu, Scopion(if he shows), or at VERY least, Cassie...