(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.)
In my idea, he could be. The Mask of Control had Mata Nui on the Mask, so I thought it possible the Mask of Creation and Control came from the Matoran Universe (that is what MU stands for right?).
My mistake. Artakha organized the Protectors. In my idea, the villagers were created by Mata Nui and the Mask of Life (BIONICLE Stars Ending).
In my idea, Umarak is a friend to Artakha, and the previous owner of the Mask of Control. During his time with the MoCo, Makuta was his Protector.
In my idea, after he was corrupted by the Kraakhan and rebelled against Artakha,, Umarak was defeated, and the Mask of Control was taken from him. Then, Artakha used the Mask of Creation to give him a pair of antlers (giving him a 'cursed' look), I assumed Artakha could do that.
Makuta was wearing the Protector Mask of Control.
This referring to the Prophecy of Heroes, I thought the Mask of Creation could have revealed it. Remember, The Legend said,
"The Masks were scattered and hidden all over the island, waiting for a time when someone would come looking for them."
This line seemed to imply that not just the MoUP has a mind of its own, but the MoCr and MoCo as well. That could explain why they are so special.
Maybe the new one? I'm still working on it.
In my idea, he is dead in body, but his spirit resides in the Mask of Creation.
In my idea, the threat of Umarak causes Artakha to act upon the partially finished Prophecy of Heroes. Through the First summoning, they summon six comets with six Toa, dubbed as Pre-Toa. The stars are not aligned, so these Toa knew who they were:
Kulta-Toa of Fire, Akudo-Toa of Jungle, Telak- Toa of Ice, Eshardu-Toa of Earth, Balaki-Toa of Water, Golutek-Toa of Stone
(Later known as the Skull Creatures (exept Baleki. He dies a hero. I think. Still working on it)
As to the original Mata... still on Spherus Magna, but they do not know of Okoto. Maybe. Still working on it)
If you want to see more, click this topic below (See Post 145- TIMELINE):
If not. That's OK.
Hope I answered your questions clearly.