A leaked Gamestop listing has bolstered rumours that Activision's next Call of Duty title will be Black Ops 4. CharlieIntel reports that a tipster sent it images from Gamestop's internal database of listings for Call of Duty: Black Ops 4 merchandise. The listings are for t-shirts and lanyards, priced at $19.99 and $6.99 respectively, due to arrive in May.