Guild Wars 2

General

Across the world, Aether Key Pieces have a chance to drop from all open-world creatures during this release. Combine five of these tradable pieces to form an Aether Key, which can be used to open one of several hidden Aether Chests in the new Twilight Arbor Aetherpath. These Aether Key Pieces will drop worldwide during the Twilight Assault release. After the release, they will only be found in the Tarnished Coast and Steamspur Mountain areas.

Rata Sum, the Grove, Caledon Forest, and Metrica Province are part of the Tarnished Coast. And Bloodtide Coast, Sparkfly Fen, Timberline Falls and Mount Maelstrom could all be considered part of the Steamspur Mountains.

From the GW2 wiki “Rata Sum, the Grove, Caledon Forest, and Metrica Province are part of the Tarnished Coast”

And here I was hoping they would open up that little space between Rata Sum and The Grove.