I've watched playthroughs of all 3 DLCs, but I haven't read into all of the codexes or extra lore they bring in beyond what the cutscenes show, and the DA world is one I'm very much interested in so I'll have fun picking out all of the things they'll add into later games. There are so many plotlines they can follow that they could make at least 3-4 more games (2 more archdemons, titans, qunari invasion, forgotten/forbidden ones, kal-sharok, consequences of choices regarding the old god soul or the architect, solas obviously, etc.).