Normally I agree with Ziegler, but in this instance, I think he's missing a point.
Palin is not a Hillary Clinton or Barack Obama who's life long dream is to be President. If we are to take her at her word, she's not in politics for her own gain. Believing her and with all the money she is and could be making, I think any decision on her part will be dictated by what the landscape looks like by next year.
At this point, what potential Conservative candidate appears poised to make a run in a Country which appears to be looking for a Conservative? So far....none.
If that remains the case, I'd bet Palin runs.
Hunter/DeMint/Pence. I think they may all be running.