You’ve probably shot through Destiny 2’s campaign by now and are currently embroiled in the end-game with World Quests, Adventures and whatnot. Bungie has a lot of post-content activities planned though and laid out the roadmap for the next few weeks in its latest weekly update. You can check it out above.
Nessus will be the Flashpoint on September 12th with September 13th marking the debut of the Leviathan raid. Trials of the Nine will begin on September 15th with the mode being Countdown and the map being Eternity. Xur will also return next Friday with some Exotics, marking his first appearance in Destiny 2. Unlike before, he can be found in the wild rather than a Social Space.
Future Flashpoints, Nightfalls and whatnot have been dated as well but perhaps the most interesting thing is the Faction Rally on September 26th. Bungie hasn’t indicated what this means but it could very well be an event where players will represent their various factions.