"She ain't run'in."
I have considered that too, that she won't run, in the end. I think she is currently "laying the groundwork" and hoping to get a groundswell of support but it's not happening. The clintons are done, IMO. They've been out of power and dwindling down since they were removed from the White House in 2001 by probably minutes before the Bush inaugural.
Clinton's triangulation mumbo jumbo and John Kerry's impenetrably tortured logic have created a groundswell on the left for a standard barer with solid liberal positions.
Frankly, I can't blame them.