The Skipper has taken a court action for reinstatement. I believe the hearing is on November 6th. It's likely he'll win (allegedly).
If he isn't reinstated the alternative is a cash award. O'Leary is reputed to have told him when he was firing him that he didn't mind paying the fine as it would be worth it to get rid of him.
Not to mention the terror it instilled in the troops when the head of the union local group could be so easily disposed of.
I don't know what happened to the F/O.