I think having a toa of light would be a little odd since Voriki is planned. However I think the best name would be Takua, as we really don’t need anything new.
here are a few I have come up with
Kotanga (derived from wherikotanga, Maori for Brightness)
Huru (Maori for Godlike)
Ramapai (derived from marama o pai meaning Light of Good)
Itoito (Maori for Courage)
Pana (Maori for Banish)
and
Whatiata (Maori for Dawnbreak)
I don’t mind if they use Takunuva again due to it being nostalgic
but that might be the name they shall use at the end of the day
Those are some interesting names. If a toa of light was to happen, one of these could work to save the name Takua for something else.
Good guy
To be honest, using a Maori name is an… unwise decision. Even though this is entirely fan-made, it’s the same problem as when Lego used so many Maori names. Come up with something original, or maybe reuse a name/names from the previous generations. I like Avohkii myself, though Takua is likely to beat it out.