The Assignment is the first DLC expansion to the game, and The Evil Within: The Consequence will hit later this Spring as part 2.
From the publisher:
“In The Evil Within: The Assignment and The Evil Within: The Consequence, players take on the role of detective Juli Kidman, Sebastian Castellanos’ mysterious partner, in a concurrent story that looks to answer some of the questions surrounding her whereabouts during The Evil Within. Along the way she will encounter disturbing new enemies, discover new mysteries, and uncover new horrors. The Assignment and The Consequence give fans of The Evil Within the perfect opportunity to discover detective Kidman’s hidden motivations and her mysterious connection to Mobius, the shadowy group thought to be behind the gruesome events of The Evil Within. “
You can get the DLC as part of the $19.99 season pass which includes both parts, plus the third expansion The Evil Within: The Executioner. Or you can purchase each one for $9.99 each.
You can read our review of The Evil Within here!