I actually liked bringing Tony back because they never showed him fully dead. As was said in the episode, his got picked up by EMT's and Jack got sent to China. So I find that legit and am looking forward to how they'll use him and why he would be on the other side.
My first thought agrees with the undercover CTU with Bill Buchanan and Chloe supporting Tony.
I don't think Jeneane Garafalo is a mole though, because she is too much like Chloe...unless that's what they're intending.
I don't like the woman president and her husband. That story is going nowhere thusfar.
I REALLY hope we see Former President Logan and Secret Serviceman Aaron. BTW, I think Aaron and Jack are the only 2 who have been in every season.
Also, I wish they wouldn't have spoiled the return of Bill and Chloe. If I wanted to know that, I'd go to one of the freak websites and read the spoilers.