Was this a textual mistake or developer tool leftover from beta? Pirates can already visit the Wizard101 worlds of Mooshu and Dragonspyre, so Krokotopia isn't a stretch. Some other factors may actually lend credibility to the possibility that pirates will be visiting the land of manders.
First, in much of the same way pirates visit Dragonspyre by simply traversing Avernus Skyway, I suspect Krokotopia Skyway will function in a similar manner. It could still be a full fledged world like Mooshu, but it seems the storyline indicates Aquila, Polaris or Marleybone are the next contenders for a full world. Krokotopia (if a full world) doesn't currently have a lead into the current storyline. So if it isn't a full world, what would it connect? Well, my guess is Aquila, for the second reason below.
Second, Marco Pollo's map accurately depicts Dragonspyre's Avernus Skyway as the link between Monquista and Valencia. Therefore the Krokotopia connected to Aquila on Pollo's map should have a corresponding stormgate from or to Krokotopia (and even from Skull Island and Valencia for that matter).
Finally, if you've ever noticed, Avery's room on Skull Island is decorated with themes from Marleybone, Mooshu, Polaris and Aquila. If you look closely, the Aquila area has a Krokotopian obelisk in it. Coincidence that Avery's one Krokotopian souvenir is located here or proof of a connection?
