Thread:Gokyr586/@comment-24661512-20171201181720/@comment-11479355-20171202010634

The snapshot from the magazine teasing the possibility of a Rider 3 and a Rider 4 is separate from the manga showing an actual Ridrr 3 fighting Geberal Black, meaning that there is no connection.

Same with the producer for V3 wanting Taki to be Rider 4. So, there are three separate situations: However, since Taki ultimately didn't appear in the V3 series, "Rider 4" in this case thus officially refers to Riderman.
 * The Televi Magazine article teasing the possibility of a 3rd and 4th Rider,
 * The manga featuring Rider 3,
 * and later on, the idea for Taki to become Rider 4.