We know Ubisoft is planning a third Assassin's Creed Valhalla DLC expansion, and dataminer j0nathan might have just found out what it is. The leaker posted a video detailing their findings, which Eurogamer translated, after mining the latest patch for information, and it includes the name (Dawn of Ragnarok), along with achievements and even hints at new weapons and abilities.
The leak places the setting in Svartalfheim, and as the name suggests, it's about the coming of Ragnarok. The invasion of Muspelheim triggers the Viking end of days, though Eivor's role seems similar to the part they played in the base game.
Dataminer Uncovers Assassin's Creed Valhalla Ragnarok DLC
One achievement unlocks after you bring all territories in Svartalfheim under your control, and there's something about upgrading "Odin's Bracer" and finding Dwarven shelters.
Of equal note is a new type of weapon, teleportation arrows, that let Eivor warp near their foes for quick assassinations. They can also turn invisible and gain the powers of ice at some point.
In other words, it sounds like Dawn of Ragnarok could be similar to Siege of Paris, full of new features without necessarily changing too much of the underlying structure.