The best: the scions finally splitting up, setting the stage for feeling like going forward we'd have fresh new stories

The worst: the scions getting back together the literal very next patch. If you're someone playing for the first time, or catching up, you could finish 6.0 and see the scions disband then in less than 10 minutes of gameplay start 6.1 and see them reform. This ruins any emotional weight that them splitting up may have had.