User blog comment:Melspuppies8282/What Would Happen?!?!?!/@comment-1984959-20120609092824

Simply put, I think Elizabeth and young Will will wait for daddy Will...that's pretty much it. I'm personally not to fond of more children for Will and Elizabeth, so one is pretty much enough if you ask me(as the "only child" thing can seem like a gene passed from Bootstrap to Will). Plus I like the idea that Will returns to Elizabeth and his child...in which their main story ends.(the rest can be up to fanfictioners)

And now for Jack, Barbossa, and Angelica(as it's likely they'll be in P5). Until I see anything official P5 info, I think..
 * Barbossa would continue pirating aboard the Revenge, simple as that.
 * Angelica would stay marooned on that island...unless she pulls off a Jack and escapes with only "sea turtles" as an explanation of escaping. During that time, she will be plotting her getting back on Jack with the voodoo doll.
 * Jack would go on some misadventures with Gibbs, which may or may not need be mentioning(as it would lead to their first appearance in P5).