So, as I understand it, Shattered Dreams is basically going to update the Athar from the "we're fleeing from the Gods because we've got nowhere else to go" status that they had earlier into a genuine faction again? Also, provide a nifty adventure where the Athar actually manages to put a God on trial.
I guess a couple of questions that come to mind are...
1. What do people see happening to the Athar after this in "canon"?
2. How will these events effect Planescape canon as a whole?