Given the current numbers from DemConWatch, the need for superdelegates look like this, given an estimate for GU/IN/NC that I think is reasonably favoured for Senator Clinton:

Notes:
Hillary needs 40% of the SDs even if she takes 100% of the pledged delegates after IN/NC.
Obama can still do it in that situation with 65-70% of the SDs.
Its probably more likely to be a 50-50 from there, making the numbers around 75% for Hillary and 27% for Obama.
Which in absolute numbers are about 218 for Hillary and 78 for Obama.