MYSTERY trailer released by CA:
It’s called “azyr stirs.” At the observatory in the imperial capital, Altdorf, an astronomer observes grungis Baldric. This particular constellation is characterized by dwarfs and appears in late spring and early summer.
It’s possible that creative assembly is suggesting that the new DLC of Total War: Warhammer 2 is related to dwarves and will be launched this spring. But others think it’s a trailer for Total War: Warhammer 3. It is not certain what the facts are.
CA also posted the video on the steam page of Warhammer 2