Johnny Depp is in "Pirates of the Caribbean 5", more than anything to return to catch a good wad of millions, because this saga of pirates is allowing him to be the highest paid Hollywood actor. He already has a whopping 350 million dollars pocketed for participating in this franchise.
In addition, even if your producers, Disney, ask for a salary increase, they will not have any qualms about paying you because "Pirates of the Caribbean 4" has exceeded 1.000 million dollars in collection worldwide and it is already the seventh highest grossing film of all history.
The script is already being prepared and everything indicates that it will be better than that of "Pirates of the Caribbean 4".
On the other hand, we hope that Penelope Cruz will also repeat in this blockbuster saga.