Ok, I re-watched the trailer again, took some sleep, took some time for analysis and I have a weird theory.
ED: MK11 is gone, guys, let's start with our new game which is going to be... Injustice 3!!!
NRS: OK BOSS, On it.
-- after some time --
ED: Wait, wait guys! I got new instructions from top management of WB. They did market analysis and we need to skip Injustice 3 and go straight to MK12 like RIGHT NOW! HYPE WILL BLOW PEOPLE UP!
NRS: But Ed, we are already halfway there... we have the colors, animations, assist system perfect for comic characters (Batman & Robin, Superman & Wonder Woman), we have the splashes, explosions and all that stuff!
ED: Dammit, ok, leave it like that. Just reskin to MK characters, do it now!
---
Basically I cannot unsee this vibe.
Apart from that, currently they didn't show any pure BAD guys in the trailer (not counting Kameos, we don't know if they are even present/canon in the story or are they just fun addition). The game is so BRIGHT. There is no darkness at all, but MAYBE, just MAYBE it's planned move and it will get darker over time when we get to see proper villains.
I'm not digging the new Kenshi-Yakuza outfit. I'm not convinced, but the klassic looks good and it's always good to see Kenshi in the roster.
Kung Lao and Raiden look like NPC monks. Generic and plastic. Hope that will also change in the future.
Not sold yet on the kameos. Simply need more info and see more action. Now I can only say that those models look even more plastic than main roster fighters.
Now on the positive aspects. I've bolded it to be noticable. Because it's not like I hate all of what I saw and I will not even give this game a chance. And to prove that I'm not only negative whiner.
I absolutely love Mileena, Kitana and Liu designs and how they are fighting. Johnny is OK. Looks like proper actor-playboy.
I also love the stages. If one of them is Edenia, it looks absolutely beautiful. Yet again, I hope we will get more "darker" stages in the future.