As per tradition with each expansion, Square Enix has launched the official Final Fantasy XIV Dawntrail website, where all release and subsequent patch details will be posted in tandem with The Lodestone. However, there are a few new details regarding Dawntrail's Field Operations content and the Arcadion that will certainly elicit discussion among players.
FFXIV Dawntrail's new Field Operations area called Shades' Triangle
The first major detail that was quietly added on Dawntrail's website is what looks to be the official name for the expansion's new Field Operations content. A description on the 'Gameplay' page calls it Shades' Triangle and provides some very interesting lore about this hidden tropical island.