User blog comment:CutlerBeckett/Gore Verbinski or Rob Marshall/@comment-79.114.117.34-20120831130542/@comment-1984959-20120831192841

Gore didn't leave Pirates because he was "burned out". He only left because he was either trying to work on an adaption of some video game called "BioShock"(in some news articles), or working on that movie "Rango"(from Johnny Depp himself). I did remember seeing this quote back after AWE was released:
 * If there ever were another Pirates of the Caribbean film, I would start fresh and focus on the further adventures of Captain Jack Sparrow.

And sure enough, they followed his example. So I'm thankful for that, at least.