Though it doesn't seem to be on the Official Ubisoft Online Store, the Illustrious Pirates DLC pack is now available for Assassin's Creed IV: Black Flag, bundling all the various preorder incentives for the stealth/action sequel in a single pack. The Ubisoft blog has all the details on what's included, adding that this is free for Season's Pass holders. The pack is available on GamersGate, GameStop PC Downloads, and Steam.