The most I got wipes this translation of the official Twitter announcement

Kikai Sentai Zenkaiger Spinoff: Introducing ZenkaiRed!

Introductory Episode- Kai/ZenkaiRed appears and claims that the leader "needs to be Red", trying to oust Kaito from the position of main character.

Final Episode- ZenkaiRed claims that sentai should be composed of human rangers, and begins turning the Kikainoids human

Kai/ZenkaiRed is played by Isse Daiki; human Gaon is played by Sasamori Hiroaki; human Magine hasn’t been named yet.

For the record, this is the first hint of the Kikainoids becoming human and it’s basically like the Go-Busters Returns V-Cinema or “Kiramai Driller”: a light hearted jab at the people who denounced the show for not being more traditional.

Fun fact Daiki Ise who will play Zenkai Red is in real life the singer of the ToQger theme song.

Oh, I see! thank you for clarifying this! I'm not especially worried about the Kikainoids being suits, but I have to admit, it would be easier to write about them if they were humans. :p

So I wonder what Zenkai Red Sentai Gear will look like, a Zenkaizer Gear, but with red lines or a Zenkaizer Gear in the Style of one of those Super Red Sentai Gear?

A "super red" style gear would actually make a lot of sense. Heck, maybe he'll use some of the other super red gears.

I assume the name Kai is a nod to Akarenger's surname, Kaijo.

I just saw a clip of him transforming and he does use the Super Red Sentai Gear version of Zenkaizer.

ZenkaiRed looks kind of like Captain Marvelous, though I'm aware he's a different actor. And it looks like what I'm reading here means we'll see humanized versions of the Kikainoids, which might be interesting. Also I love the fact ZenkaiRed looks just like Zenkaiser but red.