Sorry I'm late to the party, but holy shit I loved the trailer. Definitely Day 1 buy for sure, although I'll wait til after the Community Reveal in January to do the pre-order. The only gripe like most others would say is definitely the choice of artist. I can handle rap, but c'mon. Could've gotten Wu-Tang Clan instead...
And from watching the trailer so many times, time travel is involved, and it seems one of the Elder Gods is heavily involved in this scheme. Also I love the sound of damage and blood-spilling moments between Dark Raiden and Hanzo. Plus, that appearance from another Hanzo was a surprise for sure. Indicating either fighters from the past, or other timelines involved as speculation.
Gameplay speculation, I'm very open to customizing my kombatant's moveset, and appearance (taking a bit of nod from Injustice 2).
And as for guessing on which kombatants will make it, here is my wishlist below (plus those that are likely appear):
Sub-Zero (Kuai Liang)
Jacqui Briggs
Cassie Cage
Takeda Takahashi
Kung Jin
Fujin
Kotal Kahn
Ermac
Reptile (Syzoth)
Tri-Borg
Liu Kang (Dark Emperor)
Kitana (Dark Empress)
Kung Lao (Revenant)
Sheeva
New Centaur (new kombatant)
Ashrah
Hotaru
Noob Saibot
Erron Black
Jade
Sindel
Kabal
Sareena
New Outworlder (new kombatant)
Shang Tsung
Also praying for Onaga's return. One way or another, the prophecy must be fulfilled..
As for arenas, PLEASE have the other realms in there. Not just Earthrealm and Outworld places please!!!!