Of course. We know the Beast, though the Dems are just getting their eyes open. She has three months to barge through the door that may open; Obama might make a major stumble; he might have a stroll in Ft. Marcy Park; he might take up flying in fog. She also has another 2 months before the election. In all about 150 days, any one of which might prove fatal to Obama’s candidacy.
She’d be a fool to release her delegates.
There is also some chance that before Obama names his running mate, he makes a gaffe that cripples him within the party. Then, Hillary’s delegates might be needed to get him nominated at the convention. She can hold them over his head and require the #2 spot.
And if she gets that, and they win, she has four whole years to bump him off.