I’d go with Kabrua, Johmak, and maybe Botar’s replacement if the first batch pans out.
A single Vorox, taller and stronger than the rest, approached the net.
Since there have been at least two Glatorian contests in the past and other major characters of TYQ are getting appearances, I don’t see any reason to exclude a tall Glatorian and pivotal character of TYQ. If Orde, Zaria, Chiara, and Marendar are getting canon appearances then so should Kabrua.
The Toa Mahri spun around to see an ebon-armored female standing just behind them. For a second, they thought she was a Vortixx, but a closer look revealed her to belong to a species they had never seen before. She carried a shield, but no weapon that they could see.
Before the Toa could question her further, the armored woman’s body shattered into a million crystalline fragments. The fragments scattered on the breeze. In moments, they were gone.
Other than ebony armor and probably wearing a helmet, she’s pretty much a blank slate.
One looked something like Botar, but obviously wasn’t.
She was flanked by a warrior in golden armor and a four-armed giant with two long horns coming out of his head.
Putting the four-armed giant aside, having a contest for Botar’s replacement would grant us a third titan but I don’t think TTV will host a contest for this character.
I don’t understand the appeal of even more Toa contests, especially given the inevitable Toa burnout caused by having so many. There’s already 11 Toa contests in comparison to one Dark Hunter, two titans, and Marendar.
If TTV finishes the first batch and the community decides to have continue having contests, I’d rather see characters with unique designs than what is basically filling in as many Toa pages as possible on Bionicle fan wikis.