Speaking on Depp's axing, original Pirates script writer Stuart Beattie said: "I think he's had a great run. Obviously, he's made that character his own and it's become the character he's most famous for now.
"And kids all over the world love him as that character so I think it's been great for him, it's been great for us, so I'm just very, very happy about it.
"I think Jack Sparrow will be his legacy. It's the only character he's played five times, it's the character he dresses up in to visit children in hospitals, it's what he'll be remembered for."
The first Pirates of the Caribbean movie took 10 years to be made, after Beattie first came up with the idea in 1993.
It has since gone on to become the 12th biggest franchise in movie history.