On July 30, Infinity Ward announced that Call of Duty: Modern Warfare Season 5 will begin on August 5. When is the release date for Call of Duty: Modern Warfare Season 5? But fret not: Here is everything you need to know, so far, about Call of Duty: Modern Warfare Season 5, from its release date to the new Operators, weapons, and other exciting changes coming to Verdansk. The new season, Season 5, set to arrive in the first week of August will be here very, very soon. There isn't much time left in Season 4 of Call of Duty: Modern Warfare.