The Far Cry games are known to do something crazy eventually. For Far Cry 5 it's the teleportation of Nick and Hurk to Mars in a wild adventure called Lost on Mars. Apparently, the two feel Martians have no respect for borders and so, to ensure everyone's butts on Earth remain un-probed, the two will be bringing out "The Solution to Everything" - guns.
The Lost on Mars DLC is part of the Far Cry 5 DLC trilogy along with Hours of Darkness (which was meh) and Dead Living Zombies (which sounds fun). Along with the upcoming DLC are new assets for the Far Cry Arcade, so you can probably expect some Doom-inspired levels.
Lost on Mars launches on July 18.