The Kokiri are thorized to be one and the same with both the Koroks from Wind Waker and the Kikwis from Skyward Sword, being nature-tied beings, they could change as need be to adapt.
The Sheikah also appear in Skyward Sword,a nd their motifs are scattered all through the Zelda franchise.
Allow me to correct the first response by saying that Koroks are confirmed to be descended from Kokiri, it is not a theory. Since in Wind Waker, it shows that Fado (a Kokiri and former Sage of Wind), was the ancestor of Makar (a Korok). However, it is not confirmed whether or not Kikwis are related to either Kokiri. Sheikah, are referenced somewhat in the games Skyward Sword and Twilight Princess. Timelinesplitter 04:08, May 19, 2012 (UTC)