Downloadable content was a big part of Saints Row: The Third, with the game receiving many add-ons that ranged from cosmetic changes, as well as new missions and gameplay elements. Deep Silver has announced a Season Pass for Saints Row IV, which will cost $9.99. It includes two mission packs, as well as "Rectifier" weapon, which is exclusive to the Season Pass.
The only other piece of DLC that has been announced is Enter the Dominatrix. Originally scheduled to be park of Saints Row: The Third, it was cancelled and mentioned to be integrated into the next Saints Row. It is being touted as a behind-the-scenes look at what Enter the Dominatrix used to be, with the characters explaining why it was never put into the full game. It is set to come out within 45 days of the game's initial release.
