"I can't imagine doing another one. That was an amazing experience, really was, totally extraordinary, but I think three for me is probably enough."
Will we miss Kiera or Bloom? Not really. It's plainly obvious that Jack Sparrow is the star of this franchise and is the only character that the screenwriters will focus on, with everyone else around them playing second fiddle. Their characters had very little to do in the last two movies and I firmly believe the young Brits starred in them for their paycheck and to honor their contracts. The next PIRATES movie will be Jack Sparrow on his own, no question about it, probably with Geoffrey Rush in a supporting role. To be quite honest, Kiera is too good at what she does to carry on playing this mis-cast character (she was perfect for the first film, not for the action hero sequels).