According to our friends at the Outer Banks Sentinel, as of now the only confirmed OBX firework displays are in Corolla (at Heritage Park where the Whalehead Club and Currituck lighthouse are) and Festival Park in Manteo (seen from the waterfront park, downtown Manteo, and a great view at Jockey's Ridge).
We will update this page if more displays are announced.
Roanoke Island Festival Park, Manteo
Patriotic Musical Celebration with Fireworks for July 4th
With the Town of Manteo and Performance by East Carolina University
July 4, at 8 p.m.