https://www.polygon.com/2018/10/10/17960494/destiny-2-festival-of-the-lost-halloween-dates

Festival of the Lost was Destiny’s annual Halloween event. But thanks to the launch timing of Destiny 2 last year, Bungie skipped the holiday in 2017. Festival of the Lost finally comes to Destiny 2 this year, offering some new rewards, new quests and a new activity.

Today, Bungie revealed almost everything about the event, which starts for all players on Oct. 16.