We know he had a bit of a fiasco with trying to assassinate Nocticula and that he's been afraid to do anything since, but with her being a god, she shouldn't have time to worry about him.
So, are we going to see an epic quest to recover the shards of his broken quarterstaff? Is the rumor he's trying to "defect" to a LE infernal duke (not unlike his sister) true?
Who knows.