I believe we have been gifted with some more easter eggs with this expansions.
Casting Deadly Shot as Alleria makes her say "Right between the eyes!"
Also in the dungeon run, during the twilight drake boss, playing a Twilight Drake makes her say "Don't betray us, little brother!"
Have you found any interesting easter egg in play mode and/or dungeon run?
I didn't find the right solution from the internet.