Might be waiting a lot longer
Found this on Sprint website:
UPDATE:
There have been an increased number of calls into Care regarding issues with the Epic following the upgrade. As a result, the upgrade will not be pushed to more devices until a resolution for these issues is in place. The OTW update on the Samsung website will also be taken down.
Sprint and Samsung are actively working to correct these problems and release the update to all devices. I will provide updates as I receive them.