Mortal Kombat X
Ed Boon, co-creator of the Mortal Kombat series, confirmed on Twitter that the next game will be called Mortal Kombat X. An announcement trailer says it will launch in 2015.
Boon had been teasing an announcement for a week; this confirms earlier rumors of the game, including a retailer listing over the weekend that used the same title.
NetherRealm Studios, maker of the 2011 series reboot, Mortal Kombat, is the developing studio.
The game will combine "unparalleled, cinematic presentation with dynamic gameplay," according to the trailer description.