Thread:OverlordBaron/@comment-29576068-20200116135344/@comment-24230823-20200116171244

Likely no. Unlike Ohma Zi-O, who was active in the year 2068, there's no way of telling the year that the Alternate Tendou came from was very far from the future.

Seeing how Alternate Tendou got the Hyper Zecter, he likely originates late 2006, which is not that distant, it's likely he cannot be considered a Future Rider.