Wow, I never thought Tony would go that far....I know it's his wife but damn, it's not like she's a civialian, she knows the risk of her job, she knows what's at stake...Tony's gonna go down big time for this.
First it is continuing, Fox has already picked it up for season 4.
If Tony does end up going I think it's safe to say Michelle takes the job so that's two down....
As for Palmer, I don't see him getting hurt to majorally...maybe dropping out of the election and being involved in a different way next season.
as for Jack, he hasn't done anything he can't come back from. All the major things he's done have been justified....worse case scenerio he's dismissed from CTU and he comes in next season in an unofficial role, Chase gets a major case and goes to him for help or something.