Naughty Dog, the producer of The Last of Us, announced that the next, and final, DLC for the title will introduce a new difficulty mode for the single player campaign. In addition, the pack will also feature new multiplayer maps, skills, and weapons.
"It is chock full of multiplayer goodness with new maps, new weapons, new skills and also a brand new difficulty mode for the single-player campaign. We'll have more information on it as in-game elements near completion," said Eric Monacelli, community specialist. However, Naughty Dog didn't reveal any details regarding this new mode or how it will change the campaign's experience.
This DLC is the last of 3 packs included in the Season Pass, with 'Abandoned Territories Map Pack' and 'Left Behind' being the other two. A release date for this last pack has yet to be revealed.
Source: Naughty Dog