https://www.cnet.com/news/mortal-kombat-11-first-gameplay-footage-new-fatalities-characters-revealed/

In terms of the characters, we saw Baraka, Sonya Blade (now played by WWE champion Ronda Rousey), Scorpion, Sub Zero, Raiden (who's gone a little dark), Skarlet and new fighter Geras -- seven of the 25 slots on the selection screen.

There are different variations of characters like Mortal Kombat X, but now you can create your own. You can customize costumes -- like Scorpion's mask, spear and swords -- so there's potential for infinite aesthetic variety when you play online.