User blog comment:J Fan/Pirates 5 - Sequel News Rundown/@comment-5439673-20130716201440/@comment-1984959-20130719173655

Or maybe Jack could reunite with his hat the same way as Angelica reunited with the Jack Sparrow Voodoo doll: having it appear (now quoting from the script) as if delivered by fate. Or more than likely they're going to have Jack just have the hat with no explanation of how he got it.

Hard to say what will happen. But one thing's for sure. There's no reason to think that Jack's hat is lost forever. ;)