Here is some idea on how G2 could connect with G1. I’ll use this timeline to explain.
(Note: Some of these ideas are from my own story-line and ideas. This is not official, just ideas and speculation on how G2 and G1 COULD connect.)
The BIOlogical ChroNICLE Timeline
The Great Creation
- Mata Nui and the Mask of Life use the last of their power to create life on Spherus Magna. Okoto is formed.
- Elemental Creatures and Beasts are created. Many cities are built on the island. Artakha and Umarak rule the island.
- Artakha forms the Protectors (Ekimu-Protector of Creation, Makuta-Protector of Control, Utazik-Protector of Fire, Etuno-Protector of Jungle, Okagu-Protector of Ice, Tawer-Protector of Earth, Lekur-Protector of Water, Shetluk-Protector of Stone).
The War of Okoto
- Umarak finds a dark artifact (the Kraakhan w/Teridax’s mind) which makes him evil. After hiding it deep in the mountains, he seeks to overthrow Artakha. The Battle of Water. Artakha conquers Umarak and manages to take his Mask of Control and curse him, but also lets him go. Makuta is given the Mask of Control.
(There is more between here, but it has been excluded due to length.)
- Artakha sends some of the Protectors into the Region of Jungle to fortify it against Umarak. Artakha receives part of the Prophecy of Heroes. He creates the Mask of Time.
- The Battle of Jungle. The Protectors return to the City of Water. The First Summoning occurs.
- Umarak attacks the City of Water. Artakha is defeated. Ekimu escapes with the Mask of Creation. The inhabitants flee the city, hiding in the Water Region.
(Same as above)
The Great Cataclysm
- The full Prophecy of Heroes is revealed. New Golden Masks of Power for the Toa are created, and hidden. Makuta forges the Golden Masks of Unity.
- Corrupt Makuta becomes envious of Ekimu. Makuta forges the Mask of Ultimate Power, then hides his Mask of Control.
Well, you know what happens next.