https://www.pcgamer.com/mortal-kombat-11-trailer-confirms-kitanas-return/

Mortal Kombat 11's string of ultra-violent, gloriously silly trailers have got me ready to crack some skulls, completely unlike this subdued TV spot. You can't put all the good stuff in adverts, apparently, even when revealing a character who can slice people up with a pair of very sharp fans. Expect a proper Kitana trailer soon, but in the meantime you can watch the TV trailer above. 

Kitana died and was then resurrected as a Revenant at the end of 2011's Mortal Kombat, returning as one of Quan Chi's minions in Mortal Kombat X. Now she's co-ruler of the Netherrealm with her undead pal, Liu Kang. We might also get to see pre-Revenant Kitana, since Mortal Kombat 11 is full of time travel shenanigans.