The game remains a mystery... until now.
We have a logo, we have a vilain but what about the story.. the main plot of this upcoming game? Well, I have an answer for that one. And even though it's my personal guess, there are some things telling me that it's not a crazy one.
First: The title of the game. It's no surprise that game is going to explain the origins of the Master Sword. That powerful blade capable of banishing evil. If I remember right, that sword only appears in games directly related to Zelda, Ganon and the Triforce...
Second: The bad guy: He is strange, almost IMO looking... not exactly what we look for in a vilain... No Ganon here.... (well, continue the reading)...
Third: The game's logo: Here it is: An "old" look at the bird's shield and the most important part of the logo: The Triforce. It's there.
The wild guess: The games speaks about the origins... of what exactly? Everything. I think that game will teach us how it all started. How Zelda will become the princess of Hyrule (even though it seems she's not from that world). Link will take refuge there, hiding himself from evil to protect it's future. The Triforce will be discovered and hidden away from evil minds for some reason... and... Ganon will rise, being attracted by power. Somebody will give him that will.
Ok I heard Ganon won't be the main focus in the game but nobody said he won't be a part of it (In twilight princess, we heard of him later in the game).
This is only a guess... a dream I had about the game. But if you want to tell a tale about how it all started, maybe, just maybe, it will tell us how Ganon was raised in a desert, far away from the Triforce and the princess, and conducted to become what he is...
Your ideas are as good as mine. We will find out soon enough. But meanwhile, let's have wild guess... Maybe one of us will hit the target.