While Destiny‘s new Rise of Iron expansion doesn’t arrive until September, Bungie has now announced a new livestream event where it will preview some of the content.

Bungie will host a Twitch livestream next week that it’s calling the Cosmodrome Winter Tour. The developer said, “Before your adventures into new territories begin, you’re invited to join us for an exploration of how the world you know has changed with the passage of time.”

The stream kicks off on Wednesday, July 20, starting at 10 AM PT. You can watch it live on Bungie’s Twitch channel.

Bungie also teased in its weekly blog post that that it will share more details on Rise of Iron’s new Plaguelands social zone in the future.

Rise of Iron is Destiny’s fourth expansion, following The Dark Below, House of Wolves, and The Taken King. It launches on September 20 for PlayStation 4 and Xbox One–but not PlayStation 3 and Xbox 360. It comes with new armor and gear, as well more quests, weapons, and Crucible maps. The expansion also introduces a new raid and increases the maximum light level.

Bungie is also bringing back the famous Gjallarhorn weapon for Rise of Iron.