Housemarque, producer of Dead Nation, published today a video on Youtube regarding their upcoming PS4 shooter, Resogun. But despite this being a video about Resogun, a new Dead Nation title was teased.
In this video, entitled "[RESOGUN] A very special message for the Dead Nation fans," several not-so-subtle visual references are shown, including a zombie that attacked the narrator before he could reveal a new PS4 game. Although Dead Nation is never mentioned, with so much references it's quite obvious that a new Dead Nation title is already in development.
As for Resogun, the game will be available for the PS4 on the same day the console launches.