Once you finish the RoS Crafting Signature Line, you will be able to obtain and complete research requisitions from four different NPCs. Three of them reward a shared currency that can be spent in those three areas, and the fourth in Echo Caverns has a separate currency.
These research requisitions will be relatively straightforward, with only one extra detail compared to the BoL research requisitions. The RoS ones will also require a rare, which does not show in the initial harvesting quest. You will be able to see the rare in the recipe that has been autogranted when you received the requisition, and if you don't have one of the particular rare in your bags, then when you finish the harvesting of the commons, it will ask you to obtain the rare. This can be harvested, bought, grabbed from your depot, etc.
After you have all of the required ingredients, you craft the item requested and hand it in to receive 8 of the research currency (16 if you are a member), and a mission reward crate. You will also progress the current research a small amount.
Here are the items that can be researched:
Requisitions from Fivalt, located next to Piccolo in Echo Caverns at /way -67, 177, -104 will be offering "Opportunistic Research Requisition" which will reward an Empyral Mission Reward Crate and 8 Pico (currency)
|Crumbling Ancient Stone Archway
||Crumbling Ancient Stone Bridge
||Crumbling Ancient Stone Turn
|Emerald Fungus Grove Mushroom
||Expansive Loda Kai Wooden Bridge
||Fungus Grove Fungal Platform
|Fungus Grove Terraced Mushroom Platform
||Gilded Fungus Grove Mushroom
||Spacious Molded Tegi Complex
|Spacious Molded Tegi Mansion
In addition, this researcher will research one "Phantastic" raid weapon recipe, and two versions of the Reflections of the Grandmasters vol. V - one version will be a cheaper single-charge version of the recipe, the other will be a more expensive version that has unlimited uses to the recipe (these reflections recipes are for the five different RoS raid boss guild hall trophies). Additionally, there is one "Unlock: Placeables of the Loda Kai" which will unlock an unknown number of housing items based on the Loda Kai in Savage Weald.
Purihni "The Edge" Fordel III can be found in the Bazaar at /waypoint -51, -1, -8 Requsitions will be "Edge Research" and will reward an Empyral Mission Reward Crate and 8 Recuso Field Voucher (currency).
|an Old Stone Mill
||Colossal Beast Rib
||Gigantic Beast Rib Bone
|Petamorph Wand: Luclin Owlbear
||Petamorph Wand: Sacred Wolf
||Petrified Giant Rib Bone
|Rumbling Prismatic Gem (housepet)
||Green Marble block set
|Helm added to the vendor Feb. 9, 2021|
This researcher also has recipes for 3 "Phantastic" raid weapons.
Gundeg can be found at his forge in the Bazaar at /way -52, -1, 18 Requisitions will be "Anvil Research" and will reward an Empyral Mission Reward Crate and 8 Recuso Field Voucher (currency)
|Adult Savage Shrub
||Long Grimling Wooden Barricade
||Petamorph Wand: Cavern Needlite
|Precarious Hanging Banner
||Precarious Hanging Tapestry
||Rolling Balanzite Gem (housepet)
|Short Grimling Wooden Barricade
This researcher also has recipes for three "Phantastic" raid weapons.
Requisitions from Erdani in the Savage Weald (/way -417, 96. -315) will be called "Weald Field Research Requisition" and will reward an Empyral Mission Reward Crate and 8 Recuso Field voucher (currency)
|a Loda Kai Hammock
||Distillery Barrel Table
||Distillery Crate Counter
|Fordel Midst Council Table
||Murk Slug (housepet)
|Sacred Badger (housepet)
||Sacred Stag (housepet)
||Sacred Wolf (housepet)
|Sacred Tiger Plushie
||Vex Thal Blue Flame Brazier
||Vex Thal Blue Flame Chandelier
|Vex Thal Blue Flame Hanging Lantern
||Vex Thal Blue Flame Sconce
||Vex Thal Blue Flame Torch
|Vex Thal Blue Flame Wall Torch
||Vex Thal Violet Flame Brazier
||Vex Thal Violet Flame Chandelier
|Vex Thal Violet Flame Hanging Lantern
||Vex Thal Violet Flame Sconce
||Vex Thal Violet Flame Torch
|Vex Thal Violet Flame Wall Torch
||Vex Thal White Flame Brazier
||Vex Thal White Flame Chandelier
|Vex Thal White Flame Hanging Lantern
||Vex Thal White Flame Sconce
||Vex Thal White Flame Torch
|Vex Thal White Flame Wall Torch
||Vex Thal Arcane Teleportation Stand
This researcher also has one recipe for a raid scepter.