We are going to see the return of three secondary Legend Riders in Kamen Rider Zi-O NEXT TIME: Geiz, Majesty. Hiroaki Iwanaga is going to reprise his role as Akira Date / Kamen Rider Birth. If I remember was actually a doctor and in this movie he is going to wear White coat. Maybe he is going to be the doctor in Sougo & Geiz's High School. We might have seen Hiroaki Iwanaga return as Nobunaga & also as Shaider recently. But this is the first time in many years, he is actually reprising as Akira Date.
Actor Kohei Murakami who played Masato Kusaka / Kamen Rider Kaixa is going to release the Cover of Kamen Rider Kaixa's Theme Song "existence~KAIXA-nized dice" & "Red Rock". Kazutoyo Sato who had composed the song has provided a New Arrange to the song. This song is available on Amazon.
Today on 913 / Kaixa Day, Kamen Rider Kaixa's Manga Adaptation gets announced. The comic will be titled as "Kamen Rider 913" (Masked Rider Kaixa). The cover says "A New Rider Legend will Start!" "Moon Light & Moon's Shadow - Masato Kusaka the Man who has the Heart of Both".
In the trailer of pics for Upcoming ZI-O Episode, we only saw Takumi & Masato in their human form but it seems that they will also transform into Faiz & Kaixa respectively & fight.
Interview: Kohei Murakami (Masato Kusaka / Kamen Rider Kaixa) → Reveals the Story of him becoming Actor for Kaixa
Interviewer - Were you able to appear in 555 because of Audition?
Kohei Murakami (Masato Kusaka / Kamen Rider Kaixa) Yes, but in the beginnign I took the Audition for Takumi Inui who transforms into Faiz. At the same time I had also took the Audition for Kyoryu Sentai Abaranger. Over there I fell in the Second Round and in 555 I fell in the Last Third Round.