Part two of Bungie’s three-partDestiny 2livestream series for the upcomingCurse of Osirisexpansionwill air tomorrow at 11:00 am PT. The first livestream aired last week, introducingDestiny 2fans to Osiris through the expansion’s introductory cinematic. This week’s stream will focus on activities to be found throughout the expansion’s new Mercury patrol region. And as a surprise, Bungie also has a teaser trailer for tomorrow’s event.

The “New Ways to Play” trailer forCurse of Osirishints at some of tomorrow’s livestream reveals, though no specifics are mentioned directly. That content includes the Mercury patrol region, which features what Bungie’s described as the largest public region yet, as well as the Infinite Forest area. The Infinite Forest is the, well, infinite structure that the Vex has built at theheart of Mercurywhich simulates the past, present, and future of the present of the planet.

Clearly much remains to be shown regarding Mercury and the Infinite Forest itself, nevermind how Osiris fits into the ongoing events on the planet. But what week two’s livestream will focus primarily on is activities – what players will preoccupy themselves within the expansion beyond the story itself.

A thirdDestiny 2Curse of Osirislivestream is scheduled for next week, presumably on Tuesday the 28th of November. The first stream focused on the context of the expansion: story, setting, and content structure. This week’s stream is focusing on activities and “innovations.” But the third will put a specialpriority on reward, hopefully showcasing just howDestiny 2’s end-game will change for the better with its first major expansion.

Destiny 2is available now on PC, PS4, and Xbox One. TheCurse of Osirisexpansion releases on December 5 for all supported platforms.