According to a recent build of its Public Test Realm, World of Warcraft may be holding a crossover event with Diablo 4 soon. This event will likely come to World of Warcraft in May in the weeks leading up to Diablo 4’s launch.

World of Warcraft Patch 10.1 is arriving on May 2, bringing with it a new zone, story campaign, and raid. Parts of the major patch are already available on the WoW PTR, which periodically receives test builds for players to experience.

One of these most recent builds contained a new event called Welcome to Sanctuary. According to the event description, players will be able to hunt down treasure goblins across Azeroth for unique rewards, and will be able to benefit from the Winds of Sanctuary–a 50% experience buff and 8% reputation gain increase for all factions except the new Loamm Niffen from Embers of Neltharion. The dates for this event are currently unlisted, but players can expect the event to begin after Patch 10.1 arrives. It will likely run through Diablo 4’s launch on June 6–and perhaps beyond release day to keep players logging in to World of Warcraft.

In addition to the experience and reputation boost, players can earn several cosmetic items during the event. A new World of Warcraft achievement associated with the new Baal’lial battle pet indicates players can earn a new minion themed after the Lord of Lies from Diablo 3. Item entries for a Horadric Haversack bag and an Enmity Hood and Cloak ensemble have also been discovered, as have models for a cosmetic Wirt’s Leg mace and a Treasure Nabbin’ Bag back piece. Players will likely be able to earn these items by defeating Treasure Goblins, exchanging currency, or other similar activities.

Players are understandably excited about this Diablo 4 crossover event in WoW. Welcome to Sanctuary would not be the first of such events–Blizzard has held similar crossovers in the past, and it even includes a World of Warcraft mount in the Diablo 4 pre-purchase bundles. Collaborations between Blizzard games have historically been quite popular, and players are eager to see official details for the Winds of Sanctuary event from WoW itself.

With Diablo 4’s successful open beta behind it, and its release in just a couple of months, players can’t wait to return to Sanctuary once more. Though Azeroth’s population could take a dip for a short time after its launch, the Welcome to Sanctuary event will ensure players don’t forget about World of Warcraft as they battle against Lilith and her minions.

World of Warcraft is available now for PC.