I thought I would say what I think the next 5 books will be about.

Book 16: We go to Polaris to do something with Nepoleguin. We know, but our pirate does not know that Queen is still alive, so we would not be focusing on the Armada. She might pop up near the end of Book 16. This is backed up by the stormgate to Polaris in Calabrian Skyway

Books 17-19: We go to Krokotopia, Grizzleheim, and Darkmoor in no particular order. This is based off of the fact that Grizzleheim and Darkmoor have connections to the map, and I'm pretty sure Krokotopia was mentioned at the end of Aquila. Queen would pop up here and there.

Book 20: We go to Andalusian Skyway in Valencia to confront Queen and take her map pieces. This is backed up by Andalusian skyway being on the Calabrian Skyway map.

Kane might be rebuilt since the machine took his mind, and Phule could be set up as a 3rd arc villain, but I could find no good place for them to fit in, so I left them out.

Feel free to leave your thoughts, and see you in the spiral.