The new trailer for God of war 3 titled "chaos will rise" that was released last week reveals all new blades! Check out the pictures.
SPOILER ALERT: Blades of Exile are going to be the third pair of chained blades Kratos uses as weapons. They are given to Kratos in the beginning of God of War III. The blades will replace the Blades of Athena as Kratos' primary weapons. The new blades also have a slightly different design.
The blades are expected to have the similar attacks like the predecessors, the Blades of Chaos and Blades of Athena.