Is Termina in the same dimention as Hyrule?

[MagmarFire]

If the Kokiri were to age, wouldn't it take a long time for them to do so? Who is to say that the Kokiri didn't return to the forest after the celebration of Ganondorf's fall?

Also, we have to remember that after the Forest Temple was lifted from evil, the Great Deku Tree Sprout came along. I think the protection of the Great Deku Tree would've been revived thus. ;)