I think its funny that the second film hasn't even been made yet. But, I like their approach with how they're making these. Make them before someone from the main cast dies.
I think that will be really cool. It was noted in the first movie that Jack Sparrow had been around in the Pacific, so that's probably going to be a part of the reason for Chow-Yun Fat's character showing up. I'm definitely looking forward to it.