The 9 Dec 2026 raid wave has a legendary reward that Blizzard has not named.
- Hyjal Summit and Barrow Deeps are planned with new tier sets and a legendary reward, to be revealed later.
- It is separate from the Spring 2027 legendary questline, which is also still unnamed.
- Onyxia's Lair is the extra 40-player raid in the same wave.
- There is still no Dungeon Journal at first. Stats stay hidden until an item drops.
Unconfirmed the legendary's name and every raid's drops, including Onyxia's.
Source What's Next recap.