trainofthought, please use the search function before creating a new thread. There are plenty of other discussions on this topic. I've merged two of the more recent threads and moved them to the Theory section, as the general pattern of this thread is finding similarities between games, developer quotes, and other things that are used in discussing theories (not to mention your thread's name).
Am I crazy to think that Link in SS might be the first hylian ever existed? Maybe he was created by them to fight off the evil monsters lurking below the clouds. Tell me your thoughts on this theory!
Aonuma stated that he was raised as a normal inhabitant of Skyloft, so it probably wouldn't be anything that elaborate. But disregarding that Shad was mistranslated, it would still be ...possible. I prefer to think that Link is an Oocca and the Hylians already existed since Shad said the Oocca left Hyrule when the Hylians were created, and Link is only just discovering Hyrule in SS.
Now just what this entails is still a mystery. It could be that the Oocca created the landscape that the Hylians later developed into their country. Or it could have been the Oocca that built the ancient structures like the various temples and dungeons that are spread out all over the land. Maybe even Hyrule castle is an ancient structure of theirs. What we do know is that they are related to the Dominion Rod, and by extension most likely the owl statues found all over Hyrule.
This might also include a connection to the Temple of Time as the Dominion Rod was used heavily there as well. So it might be possible that the Oocca might have created or took a part in creating the Temple of time that houses the Door of time and the Master Sword.
You forgot about Rusl:
聖なる力で護られた森の奥深くに 悠久の時を眠る神殿があると言われている
It is said that deep in the bowels of the forest, guarded by a sacred power, there is a temple sleeping for all eternity.
Some say there is an ancient temple deep in the woods that guards a sacred power.
ハイリア人の祖先によって造られたその神殿には、今もなお古代の優れた文明が遺されているらしい
In that temple created by the ancestors of the Hylia people, the excelling culture of ancient times seems to be left even now.
The ancestors of the Hylians created the temple... Signs of their civilization--ancient, but very sophisticated--are everywhere.
Yes, the Oocca did build the ToT and perhaps a lot of other things as well. Rauru said they build the ToT to protect the entrance to the SR. The MS was built to protect the Triforce. They have similar functions and I think they will be closely related in SS (or at least implied that they'd be related shortly after SS ends).
I'm sorry to disagree, but I truly think it isn't either of these. An interview already stated it was pieces of Hyrule broken off, and Link has to reattach them. So at the end of the game there will be no Skyloft left. It will be a part of Hyrule again.
Yes, Aonuma said that Link will discover why the lands had been separated. However, no one said that they would be reunited. You can find the interview if you follow the SS resources link in my signature.
This ignores what Shad said about the Oocca creating Hyrule. His statement could be explained by pointing out just how many centuries or millenia we are talking about here. Facts get distorted and/or lost in that time. I would personally say that Shad would have been more accurate to say that "the Oocca are descended from people who were around when Hyrule was first formed."
If the people who created Hyrule went to live in Skyloft, then returned to Hyrule and became the Wind Tribe, then went back to the sky, then became the Oocca, then one could still say that the Oocca created Hyrule. Shad wouldn't have known enough about the history of the Oocca's 'evolutionary' chain to specify that they created Hyrule while they were in a different form.
But I still think that chain of events is too long and confusing, and doesn't have much support other than assumptions. For now, I'm only willing to say that the Oocca will be in SS. If I see evidence from playing the game that it's the Wind Tribe as well, then I'll incorporate them into the story.