So according to this http://www.slashfilm.com/2008/09/24/johnny-depp-cast-in-burtons-alice-the-lone-ranger-and-pirates-of-the-caribbean-4/ Johnny Depp has signed on to do a fourth movie.
My question to you guys is will it be so bad if only Depp was in it? And include Rush returning as Barbossa(he has previously stated that he would be interested in reprising the role again) as well. Now Keira Knightly has stated that she no longer wants to work on the franchise (she's being doing it since she was 17)so that would probably exclude Orlando Bloom returning as well.
Personally I can't wait for this espacially if Rush comes back. I always felt that Depp and Rush just played off each other better.