Toei had registered the trademark for their next Kamen Rider → Kamen Rider Zero-One. The name is based on the New Era "Reiwa". Reiwa's Rei sounds similar to the word Zero "Rei" (零). Reiwa's Wa is made as "One" (Wan). I wonder the second will be called Zero-Two.
Videos by Cast
Bamba Disguises Himself as Towa on Towa's Day (October 8th)
Uhr Says to Visit Kamen Rider Zi-O: Final Stage