The new store exclusive steed of September is the Steed of the Greenwood. This steed appeared in the store starting on September 3rd and will be available until September 30th.
The description of the horse in the store is:
This steed has green barding made of sturdy leather plates, with a light green ridge on it’s halter.
This mount is as fast (+68%) and same morale (250 HP) as the previous store exclusive mounts with the same price tag. This steed is a per character purchase so be sure you spend the Turbine Points on the character you want riding this.
Purchasing this steed will also allow you the use of the appearance items for your War-steed.
Tales of Arda (@toarda) on twitter shared what the warsteed cosmetics look liked dyed.
— Tales of Arda (@toarda) September 3, 2013
Store Location: Travel & Housing -> Mounts -> Store Exclusive