Don't forget Fountain of Youth and Isla Cruces! Pelegosto or what was that called? Singapore is a must. But should be far off into the world map. That the island isn't visible for whole five minutes if you start from Kingshead into the Uncharted waters, only the name is visible. Ofcourse a teleport totem would be needed later. Is this just me or Cuba should be placed far (Not Singapore far xD) and...
Be Bigger.
Be BiggerBe BiggerBe Bigger.
I mean seriously. If Port royal and Tortuga and padres were so big, then they would be visible on the globe as very large islands with a very large volcano. That in mind... Add one island known as..... Isla Sirena. Not many of you might have heard it, but read POTC Jack Sparrow: The Siren's Song by Rob Kidd.
As i dream more ideas i will post them here.