I bet the birds Link and Zelda ride on (in
SS) explain the crest of Hyrule. It makes a lot more sense IMO
than a reference to the Oocca, since (I assume) this is how the people of Skyloft came down to
earth and founded Hyrule (via bird).
I also am wondering if the people of Skyloft used the Triforce there before they founded Hyrule
and used it there. Thus, the symbol of a bird with the Triforce head, could reference how the
Triforce came from Skyloft to Hyrule below.
Personally, I even wonder if Skyloft might be where the name Hyrule comes from, and if any
of the backstories we know actually took place up there.
If the sleeping Zelda legend holds true (that she is indeed the original Zelda), then perhaps
she was put to sleep in Skyloft, when the Triforce was kept there.
Perhaps the games set in a Triforce-less Hyrule (MC,
FS,
FSA) might be after Hyrule
was founded, but before the Triforce left Skyloft, so that the Triforce crest, at that time,
was merely a symbol of Skyloft, and not something that actually existed in the kingdom.
EDIT: Lord Ghirahim is decked out in Sheikah colors.
My first thought was that we were supposed to think of him as the new villain,
and the game would reveal him simply as a trainer/partner guy. If you remember,
the
TP trailer, the Gorons were sparring with Link, but were not really enemies.
Ghirahim immediately makes you think of Vaati, he can't be the same, but is
doubtlessly similar for a reason.