Uncharted 3 is planned to be supported with a host of cooperative and multiplayer downloadable content, but no single-player stuff. Why? Speaking with Eurogamer, game director Justin Richmond said that it's pretty simple: they'd much rather be working on the next full game.
"There's a very specific reason," said Richmond. "Whenever we sit down and think we should do some single-player DLC, someone pitches something and we realize - that's a five hour level."
"We'd rather build out another game than we would do episodic content," he continued. "We're so small that we can't afford to have a whole team working on DLC."
EG notes that Uncharted 3 was built by a team of 90 people, which is reportedly only a fifth of the people building Call of Duty.