The Legend of Zelda: Skyward Sword producer Eiji Aonuma has revealed that the latest title in the adventure series is actually set before the events that take place in Ocarina of Time.In an interview with Official Nintendo Magazine (via
Zelda Dungeon), Aonuma added that there is in fact a "master timeline" that binds all of the
Zelda storylines together. The "confidential document" is only available to Shigeru Miyamoto, Aonuma and the director of
Skyward Sword.
"I have already talked to Mr. Miyamoto about this so I am comfortable in releasing this information – this title [
Skyward Sword] takes place before
Ocarina of Time," Aonuma said. "If I said that a certain title was ‘the first
Zelda game’, then that means that we cant ever make a title that takes place before that! So for us to add titles to the series, we have to have a way of putting the titles before or after each other."
And that's why they're likely not saying more about the official timeline beyond that point. Classic Nintendo secrecy at work, there.