When we first reviewed Mortal Kombat X a few months ago, one of the things we truly loved was the quality of its roster, with iconic characters from the franchise and newcomers providing a great mix. In the months since, we've seen the likes of the Predator and Jason Voorhees  joining the brutal action. Now NetherRealm has detailed four more mystery characters set to join Mortal Kombat X during the first half of 2016, as part of its Kombat Pack.

Accompanying the news is the smoke filled image below, which has us guessing as to which characters will be joining the likes of Scorpion and Raiden. Given the that the image does feature smoke, and we can make out a cyborg ninja silhouette, we're gonna say that Smoke will be one new addition.

As for the other Kombatants, your guess is as good as ours. Hopefully NetherRealm will release more info in coming weeks. In the meantime, check out the trailer for the recently added Tremor (slightly NSFW).