The Robertsons know very well what a stage they are on now--this is a huge challenge to model their faith, in all its aspects. How they respond to whatever A&E does will be the result, no doubt, of much prayer, wise consultation, and family conversation. And I, for one, would not be surprised if they accept whatever apology is forthcoming and ultimately decide to remain with A&E. They may decide they can accomplish more for the Gospel that way.
Likely. Forgiveness of the repentant is a fundamental part of Christianity.