Blizzard has just announced that Blackfathom Deeps will be the first Season of Discovery leveling raid. This raid will be aimed at level 25 characters, which is the level cap of the first leveling band.
It will be a 10-player raid, with improved loot and difficulty, all with a 3-day lockout, similar to Zul'gurub.
The raid will consist of seven bosses:
In this new raid, players will be able to obtain the new world buff, Boon of Blackfathom. Likely a version of the existing Blessing of Blackfathom buff.
Blizzard created a highlight video for the new raid, recreating that sweet sweet 2005 production including low-quality imaging and lag.