Everything in this game seems to lead to Moonrise towers.
The captured cambion, the survivors, the cure, the cultists, the disappared sharrans, the nightsong must also be on the way.

The dark justiciars plot seems to be important for Shadowheart. Some possible outcomes

Find the Dark Justiciar's lair.
Shadowheart died. We won't be able to bring her back.
Shadowheart left our party and won't return.




I sometimes use thought experiments. I don't necessarily believe in every idea I post for discussion on this forum