Hillary would jump in as VP, especially if she thinks the zer0 can win again — this way she can run as the incumbent VP in 2016.
Running against zer0 in 2012 is too difficult, if things keep going the way they have been, no Dem will win the White House - so it would be pointless to run against him.
She will go for it
She knows Obama either won’t seek re-election or won’t/can’t win. She isn’t getting any younger. She won’t want to wait for 2016 for her turn. She and Bill still hate Obama and she believes (rightly so) that she is much more qualified to be president. She will run for president. JMHO.
If she wants the top prize, it has to be 2012. Expect the long-knives to come out early next year. Clintonites Rahmbo Craig have already left; expect more Clinton defections in the near future.