Among the many games rumored to appear at TGA 2021, NetherRealm Studios' next game is one of them. But the rumored Mortal Kombat 12 didn't reveal anything on the TGA.

On Twitter, Ed Boon, co-creator of the series and creative director of Mortal Kombat, explained what happened. In response to another user's inquiry about plans for the next step in the series, Boon said: "Thank you so much for your enthusiasm for our next game, I hope we are ready to release this game." But we haven't. There are many more variables involved than we are allowed to disclose. It's worth noting that he didn't directly acknowledge that Mortal Kombat 12 is the studio's next game.
We don't know what these variables affect the game, but according to the director, it will be a while before the next game release from NetherRealm Studios will be some time away.