Astral on Twitter: "How this relates to #GW2: While Envoys have yet to be seen in gw2, the term "Envoy" was used for the PvE legendary armor, likely inspired by these spirits
Perfected Envoy armor (heavy) - Guild Wars 2 Wiki (GW2W)
How to make WvW Legendary Armor - GW2 - MetaBattle
GW2 - WvW Legendary Armor Guide - GuildJen
Elite Specializations - Guild Wars 2 Wiki Guide - IGN
Legendary Fractal (&Dungeon) Armor Concept [aka, How to get people back to 5-player content] : r/Guildwars2
Perfected Envoy armor (medium) - Guild Wars 2 Wiki (GW2W)