At the end of the finale, John B. (Chase Stokes) and Sarah Cameron (Madelyn Cline) survive a massive tropical storm that almost kills them, and end up getting picked up by a boat along the way. To their surprise, they learn that this ship is headed to Nassau in the Bahamas . . . which is exactly where Ward had the Royal Merchant gold shipped off to. Therefore, we can assume that John B. and Sarah's time in the Bahamas will consist of searching for the Royal Merchant Gold.
During an interview with Entertainment Weekly, cocreator Jonas Pate said that fans can expect to see an episode or two of the upcoming season filmed in the Bahamas. However, he said that ultimately the plot will take the cast back to the Outer Banks.