Heres the stuff from Bungie:
STORY & ACTIVITIES
END THE VEX INVASION
As Guardians delve into the Black Garden, portals open allowing timeless Vex war machines to strike back with their own counter-offensive on the Moon. They won’t stop until the moon becomes another one of their strongholds. Find a way to end the invasion.
STOP THE VEX OFFENSIVE
REQUIRES SEASON OF THE UNDYING PASS
HELP THE VANGUARD
Work with Ikora Rey to hunt down the source of the Vex invasion and put a stop to it.
NEW MATCHMADE ACTIVITY
Fight back the Vex in an all-new 6-player matchmade activity: Vex Offensive.
UNLOCK NEW WEAPONS
Choose which weapon you want to add to your arsenal and complete the associated Pursuit to claim it.
SEASONAL ARTIFACT
THE GATE LORD'S EYE
AVAILABLE TO ALL DESTINY 2 PLAYERS
Upgrade The Gate Lord’s Eye to increase your Power and unlock seasonal gameplay mods.
EXOTICS & GEAR
SEASON PASS REWARDS
GET INSTANT ACCESS TO REWARDS
Instantly unlock the Eriana-3’s Vow Exotic Hand Cannon + Exclusive Seasonal Armor Sets when you get the Season Pass.
AVAILABLE TO ALL DESTINY 2 PLAYERS
REQUIRES SEASON PASS
REQUIRES SEASON PASS
SEASON PASS REWARDS
INCLUDED WITH SEASON OF THE UNDYING
SEASON PASS OWNERS
Instantly unlock the Exotic Hand Cannon, Eriana-3’s Vow
Play the new 6-player activity: Vex Offensive
Exotic Quests, Seasonal Armor Sets, and Ornaments
New Triumphs, Bounties, and Seasonal Lore Books
Exotic Emote, Ship, Ornament, and Finisher
Additional Season Pass rewards to unlock
AVAILABLE TO ALL DESTINY 2 PLAYERS
Free Seasonal Rank Rewards
Seasonal Artifact: The Gate Lord’s Eye
Participate in Vex Invasion Events on the Moon
Unlock the Seasonal Armor Set: Substitutional Alloy
Climb through the Season Ranks to earn Eriana-3’s Vow Exotic Hand Cannon