So the video description reads: [quote]Deep within the belly of the Leviathan, one of Calus’s former loyalists has lost his mind to an Ascendant Hive relic. Gather your Fireteam. Select your Arsenal. Chart a path into the dark[/quote] So. I’m happy it’s not Quria. I keep seeing it around and this trailer has me feeling better about the raid and the possible story tied to it. Edit: The boss I believe has been revealed; https://www.bungie.net/en/News/Article/47850