We have yet to see neither hide nor hair of the game's elusive multiplayer mode (though we can confirm that it exists; stay tuned for our review next week), two of the game's three planned DLC packs will be multiplayer expansions with new maps and other additions. The other will be single-player DLC: "The journey and cast of characters in The Last of Us lends itself to thorough narrative exploration and we’ve got more of the story to tell."
More content may be planned beyond these three packs, but that's all you'll get with the $19.99 Season Pass (a 30 percent savings off the eventual price of all three), except for these Day 1 bonuses:
Increased Crafting Speed
Increased Healing Speed
9mm Reload Speed Upgrade
Rifle Clip Capacity Upgrade
Grounded – exclusive 90min “Making of The Last of Us” documentary
I imagine (or, hope) that these upgrades are optional--I'm a stickler for the intended experience, and I'd like to earn my upgrades in a survival horror game, thank you very much.
All that said, we've gone hands-on with The Last of Us twice (here and here) and it's shaping up to be everything we've dreamed since its VGA 2011 reveal. But, will it be "gaming's Citizen Kane moment"? You'll have to check back for our review to find out.