Announcments for the next year or so of Magic.
As was already revealed, Atlazan is now Ixalan. Ixalan does have a Mesoamerican theme. It also has dinosaurs, two I have seen are feathered theropods, so very yes, and it has pirates. It appears that a gorgon/medusa planeswalker is going to be the primary antagonist and she is dressed as a pirate. The only D&D product relating to Mesoamerica is the reprint of The Hidden Shrine of Tamoachan in Tales from the Yawning Portal. I haven't seen any Egyptian flavored D&D products coming out, but I'm not as plugged into the D&D side of things.
Edit: So it turns out Tomb of Annihilation takes place on some island/continent with jungles and dinosaurs and pirates? Yo, WotC, stop fucking with the bullshit everything is in the Realms shit. I have no idea what Chult is. Assholes.