https://www.polygon.com/2018/5/4/17320254/destiny-2-fall-comet-expansion-new-mode

Destiny 2: Warmind is out this Tuesday, May 8, but players are already looking ahead to the game’s next expansion. Launching in September alongside Season 4, Destiny 2’s Comet expansion promises to deliver massive changes to the game. According to Activision Blizzard’s first-quarter financial earnings call this week as well as several Destiny YouTubers, this fall’s expansion will also bring an new mode that’s unlike anything we’ve seen in Destiny.

In Seeking Alpha’s transcription of the earnings call Thursday, Collister Johnson, Activision president and chief operating officer, had this to say about the fall expansion: