I'm not sure if this is a bug or not.
I rescued Saeda and turned off the tower, and returned to the Crucible Keep to talk to Wyla, only the only available dialog option is "I'm still looking into it".
Am I missing something, or is this a bug? The quest appears to be greyed out in my journal.
Here's one I've been saving to use in D&D but have yet to get around to it:
The player meets a Fallen God, one that is barely more than a spirit. The god is pretty mysterious and wears a mask, and needs the player's assistance to revive himself.