So it looks like Kamen Rider Zero-One the Movie's Filming isn't complete yet. It was only Shesta who had wrapped up her filming. Yesterday at around 9:30 PM (JST) near Tokyo Station, Zero-One the Movie Filming was going on. It is a night scene and he is seen wearing Zero-One Driver and his signature Red colored costume from first episode.
A TwitCast streamer who was also nearby had streamed some part of the filming. A 5ch user had mentioned that he saw Fumiya-kun doing Aruto janai to! pose. No one other actors were seen at the location other than him.
Could this be the filming of the Climax Scene?