Pirates 4 Rumours debunked, "All rubbish" according to writer

[EricJ]

Originally Posted by InfectedStranger

They said the third was going to be the last one....I hated all of the pirates movies. Amazing special effects, but terrible script, and acting.

#4 was made on publicity before #3 had opened (that's how it usually happens), and some synergized justification for that Disneyland piratification of Tom Sawyer's Island they went ahead and built anyway...
After #3 had opened, well--that's pretty much what happened to #4.

(And from what rumors are born is the obvious fact that while studios promote the fact that they're "thinking of" making a movie, they're under no public obligation to tell us at what point they've STOPPED thinking of it.
Which, since no one ever found the body, leaves us to report rumored "sightings" of the project still alive, like Elvis and Amelia Earhardt...)