On the Killzone: Shadow Fall website, they have a new post with info on the season pass for the game
The season pass info on the site says
"To help you save on the first six expansion packs, we’re introducing the
Killzone Shadow Fall Season Pass – for just $19.99(US)/£15.99(UK)/€19.99(EU),
you will receive access to the following packs as they become available:
Online co-op expansion pack Focusing on team play and
intense combat, the online co-op expansion pack adds a new co-operative game
mode in which you and up to three online friends must survive against impossible
odds. Fight waves upon waves of enemies in four new arena maps, featuring a
unique leveling system and new unlocks.
Three online co-op map packs Each map pack
consists of two brand-new arena maps you can play in co-op mode with your
friends. Please note that these arena maps will only work with the online co-op
expansion pack.
Two additional multiplayer expansion packs We’ll reveal
more about these additional multiplayer expansion packs when Killzone Shadow
Fall’s launch date nears. Suffice to say they’ll offer many hours of additional
multiplayer thrills!
But that’s not all - if you get your Season Pass for day one of Killzone
Shadow Fall, you’ll receive access to an exclusive OWL combat drone skin and a
unique Multiplayer Spotlight move."
