Legacy has Hawke travel to the Vinmark Mountains in search of dwarven members of the Carta who, in turn, seek "the blood of the Hawke". There, Hawke (and their sibling, who should absolutely be taken along) finds out more about her father and his past.

Myself, I'm a sucker for more Hawke sisters banter, so I'll shill for this any day. Plus, it got me interested in the lore of Dragon Age really hard, pulling me harder back into a Dragon Age obsession than even DA2's main game managed to. I expect to finally play Inquisition soon.