Motifs you would see made possible Kamen Rider?
 

My list still stands:

Dinosaurs
Ninjas
Martial Arts

I wonder if they could do the Zodiac, jewels, or light?

Zodiac was technically already used before. The villains in Fourze were all based on zodiac signs.
Light ocassionally appears as a minor part of powers, such as OOO flash of light in Latoratah Combo and Faiz' glowing stripes and eyes.

I believe I said it in Sentai, but I think it might make for an interesting KR theme too, Chess for the Rider motifs. Not the villains. This would give way for a female rider to be A primary focus, not THE primary focus, as a secondary rider because of the Queen piece.

Chinese zodiac, then? :p

Might not be impossible if we had chess piece villains in Kiva and already had cards
Might work for something like Ryuki, with a large number of riders.

Actually, when you think about it, the Zodiarts monsters were just based off of the constellations. The Horoscopes, I dunno if they were generals or whatnot, were based off of, well, the Horoscopes.

Kitty cats. Kitty kitty. Kitty kitty coo. Kitty kittyyititktkitktktittiktitktititlkdkgbjkykcfn

But yeah I want a cat.

Name animals all you want. OOO used them all xD

How about martial arts for the next kamen rider?

I'm thinking of something Blade style.

Four riders - four animal symbols vs the masters of the Chinese zodiac.

Animals and I know that ooo had animals as one of its motifs but I mean like the rider(s) are based off of actual animals. The main one could be cats, tigers lions etc and the secondary one could be birds.

Any idea for how a kamen rider to face off against a group of kaijin who are based on the Arcana major?

*looks at Zero* Going to need a little more info than that bud. I'd love to help you with it.

Well think of it this way. In Kiva, there are the Checkmate Four, who are based on chess pieces.

In Blade, the riders and cards are based on the arcana minor (swords, coins, cups & wands).

So now.... question is... for the major arcana, if they were kaijin which type of rider series would these fit in?

Here are also the dinosaur & ninja rider ideas:

Dinosaur Rider & Prehistoric Beast Rider vs other dinosaurs & kaiju.

Yokai Ninja Rider & Yokai Monk Rider vs Shadow Oni

I'm partial to the Dino Rider set. I've been contemplating it for a little while. Care to carry this conversation on in Visitor Messaging or PM?

How about PM? Maybe I could use your help.

Lets go for it then. ^_^