I think it's strange that so many MKX endings are so similar or 'work together' so well.
There's also:
-Black's ending that goes hand in hand with Jax' ending and Sonya's ending.
-Kung Lao and Kung Jin's endings that show that a Shaolin could repeal Quan Chi's corruption if they have the will to 'be good' or something (which I guess Liu Kang wouldn't have so only Kung Lao could get out of being a revenant like that).
I don't remember many MK9's endings fitting together like a puzzle like MKX's ones. I may be just miss-remembering things, of course.
Of course there are weird endings like Sub-Zero's that has the Lin Kuei become dragon riders.
I also found interesting that in Kitana's ending it's "revealed" that she knows that Raiden altered the timeline, where she would've been the Queen of Outworld, loved by all. So, she hates Raiden all the more.