The superdelegates have never overidden the pledged delegates, and they never will. The pledged delegates will decide it. (And that means Obama.)
Neither the Dem powers-that-be nor the superdelegates will dare to counter the popular choice. It would be a nuclear meltdown in which they would be immolated. (They know better than anyone which side their political bread is buttered on.)
Why are the press and the bloggers spending so much time on this?
There's only one situation in which the superdelegates might have to make a non-trivial decision: if one of the popular measures (primary votes, caucus votes, pledged delegates) disagrees with the other two.
If that were to happen, it would be a story worth paying attention to. Absent that, it's a bunch of vaporing and hyperventilation in place of actually interesting discussion.
The superdelegates can certainly keep themselves busy writing the platform. More power to 'em.
Crossposted here.