-Each race has two Legendary Lords to choose from, with Balthazar Gelt and Ungrim Ironfist being revealed for the Empire and Dwarfs, respectively.
-Lords have three skill trees, Strategic, Tactical, and Battle.
-Legendary Lords have an additional skill tree unique to their character.
-Lords can lead armies and navies, govern provinces, and act as Protagonists, which have a political role.
Video starts at about eight or nine minutes in. The last half or so of the video is another video of the Ambush at the Thundering Halls battle, and the Q&A section at the end doesn't really provide anything that hasn't already been announced.