Disney has completed a deal with Rossio, who co-wrote the first four films in the adventure series, to return for the next instalment. It will be the first Pirates movie he pens without writing partner Ted Elliott.
The studio is also trying to tie up a deal with On Stranger Tides director Rob Marshall for the sequel, while Johnny Depp is likely to reprise his role as Captain Jack Sparrow.
Speaking to Entertainment Weekly about portraying Sparrow for a fifth time, Depp said: "As long as we can put all the puzzle pieces together, I would most definitely consider it."
Pirates Of The Caribbean: On Stranger Tides will open in cinemas this May.
> Trailer: POTC: On Stranger Tides