User blog comment:J Fan/Dead Men Tell No Tales - Details: Story, Characters and Setting/@comment-26261241-20150526142211/@comment-26425245-20150527005221

It is possible that there will be a flashback, but it is not official. It could be collected loot from the HMS Endevour (At World's End) that has been left alone, since the Black Pearl has been left in a bottle. It does fit all in perfectly. Barbossa is Captain of the Black Pearl and it is taken over by Blackbeard. At that time Jack Sparrow is making his way to London to rescue Gibbs from the gallows and Barbossa becomes a Privateer around the same time. Also, in On Stranger Tides we can see Jack the Monkey, which means there is probably still cargo, since he is still living.