Five Kamen Rider's so far with a sixth teased. The kamen riders revealed are
saber, blades, espada, kenzan and calibur
Red, blue, yellow, green, black? Looks like a Sentai. (Specifically, Liveman and Go-Onger had that combination.)
And it's Blades, not Blaze? Makes sense given the sword theme, but it's confusing since we already had Blade.
An espada is a 16th-17th century Spanish rapier. Kenzan is Japanese for "sword mountain," although apparently it's actually an implement used in ikebana (flower arrangement): https://en.wikipedia.org/wiki/Kenzan
TRAILER
Oh, I wish I were better at remembering Japanese vocabulary. I should've picked up more by now, or retained more from college.
Assuming it's not just a temporary thing for the trailer, it's interesting that they're hiding the transformation behind practical fire rather than a digital effect. Almost every Rider henshin has had some kind of visual effect associated with it, even if it was just quick cutaways to animated light flares in early Showa.
It looks like there's a W/Build sort of thing going on with the two book-based armors on the right and left. And it looks like there's a third slot in the driver and room in the middle of the body for a third armor variant, so it'd be like OOO in having up to three powers combined at a time.
At this moment there is no female rider announced.
Damn. I was hoping we'd get them regularly in Reiwa. Something to differentiate the new era from Heisei.
The head writer is also the same as Ghost's..........
Oh, great! I loved Ghost.
Well it was fun while it lasted. Here's hoping for 2022 Kamen Rider lol
Don't give up yet. I was underwhelmed by Yuya Takahashi's work on Ex-Aid, but I've loved his work on Zero-One. And I disliked Naruhisa Arakawa's work on Kuuga and was lukewarm on his Abaranger, but I've really liked every Sentai season he's written since. So maybe you'll like this one after all.