Azteca- it was hinted at in pirate 101 and the promotional ninja pig letter. (From kingsisle to select players!) it is one of the oldest worlds in the spiral. It's inhabitants are dinosaurs. Now it is here- and about to be destroyed! Get ready to visit the oldest realm in the spiral!
By the way my brother told me (spoiler alert!) a old supposedly dead nemesis, (i'm not saying who) WILL BE BACK!