Warning this article contains spoilers read to your risk This is just a theory but the original link from oot and mm will be back in twilight princess. But he will be working for the forces of evil. What im trying to say is that in majoras mask the original link had to solve peoples problems and save the land of termina in a 3 day time span. Anyways he couldn't do this in 3 days so he had to go back in time to save termina. But wouldnt link start to think that it is pointless to save these people, that evil will always win since no matter what he does he will never be able to do all the games tasks in 3 days and he would have to restart the process all over again. Then when link got the fierce deitys mask he said it was an object of evil, almost as equals has the majoras mask. After link saved termina from the falling moon he( this is the intresting part) would turn evil( cause he thinks evil will always win) find a way back to hyrule and use the power of the evil fierce deitys mask to create the twilight realmand ressurect ganon (yes ganon is back). The new link, the one we see inn the twilight princess trailers, is the new hero and manages to defeat the original link a.k.a the hero of time. THe resulting battle results in both links dying and ganondorf now is the evil king of hyrule, so then the people of hryule pray to the gods to save them and well the story then carries over to the legned of zelda the wind waker.