I think next season we will see President Palmer running against President Logan for the presidency. Remember Palmer was a one term president so he's still eligible to run for President.
I also think we will see the female terrorist who received the presidential pardon back as a villain.
Maybe while Jack's in Mexico hiding and doing all the jobs Mexicans wouldn't do, maybe he will have been looking up Mia to assassinate her.
Most assuredly she would never think of appearing with Jack around, now that Jack is no more to the world, I would think Mia could pop up, I think you have a good point.
Maybe as President Logan is getting Chinese bribes and completing his sex reassignment surgery Mia will re-appear?
Dennis Hasbert is committed to a CBS midseason replacement show for next year. So I wouldn't expect to see President Palmer next season, certainly not in any major role.
I also think we will see the female terrorist who received the presidential pardon back as a villain.
Since she was in every season except 3, I think that's a good bet.
SD