Out of curiosity, what does an official timeline add to the series?
To me, nothing. That's why I don't care that Miyamoto and Aonuma are in a special club of two that has their little Zelda timeline within the walls of Nintendo's offices in Kyoto under lock and key. I acknowledge that they've gone on record to say they have one (I read that interview), but when they refuse to divulge the specifics, it's hard to care that it exists. Since the games aren't codependent on each other, an official timeline is inconsequential.