https://www.polygon.com/2019/2/15/18226322/destiny-2-season-of-the-drifter-jokers-wild-release-date

In this week’s This Week at Bungie — the studio’s weekly blog — the developers revealed the fate of Trials of the Nine and the release date for the game’s upcoming season of content.

Trials of the Nine — known as Trials of Osiris back in Destiny, referred to together as “Trials” — was a competitive multiplayer mode in Destiny 2 that ran every weekend. But Bungie put Trials of the Nine on hiatus for Season 4, hoping to rework it after players stopped playing it as fervently as Trials of Osiris in Destiny.