The new store exclusive steed of December is the Steed of the Withywindle. This steed will be available until December 31st.
The description of the horse in the store is:
This steed has barding made of thick brown leather plating above patterned cloth.
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.
Cost 1995 Turbine Points
Purchasing this steed will also allow you the use of the appearance items for your War-steed.
Steed of Bree
Also check out the account-wide Steed of Bree available Dec 6 – 12th. Cost is 4995 Turbine Points.
I don’t have a picture of the Steed of Bree but Tales of Arda posted a picture of the steed dyed on her twitter account!
— Tales of Arda (@toarda) December 5, 2013