The page that shows both Geiz and Evil Future Zi-O made me realize that EFZO's colors are a very good match for Geiz, which is probably not a coincidence.

In case you missed it EFZO is named O-Mazi-O/Ohmazi-O (romanization is not official which is why I got the two names:))

I'll never not be able to see it as Oma Zi-O, Oma being a name for Grandma in dutch.

Grandma Zi-O

Probably an obvious prediction, but I suspect one of the big-deal enemies will be a monster version of Zi-O.

Heh! I typed "Gates" so confidently and for so long, I'm holding off and just nicknaming characters until it's official. I expect if it's pronounced Ohmazi-O, they'll probably write it as CHAD because that'll fit on the Jikuu Driver's display.

Actually the Driver just flashes the name regardless if it fits or not, after flashing the name it sticks to the year said Rider debuted in

Haven't really been thrilled with the new suits, but the monster riders all look nifty.

I can kinda attest to this?

Cranejoe and a couple other Tokutubers have messed around with the in-store demo Jikuu drivers. Names like "Ex-Aid" and "Cross-Z" show up and just scroll a few times, before settling on the show's air year.