The Last of Us will be 12-16 hours long and DLC is only for Multiplayer

Naughty Dog Community Strategist Arne Meyer made this quote about The Last of Us:

“We’re definitely looking at more than 12 hours, maybe 12 to 16 right now is what we’re looking at, it really depends on how you play. You can play a little bit slower if you try to approach situations stealthy, if you really wanna explore the environment and scavenge, that’s going to add more time too.”

Thanks Evolve