His finishing move is the "Hyper Critical Sparking", and now has the chance to beat Kamen Rider Cronus and his temporal manipulation powers. More on Cronus, we learned that his goal is to conquer humanity by turning them into data, and it is the job of the Riders to stop him.
In addition, Brave will also get a new Gashat, the Taddle Legacy Gashat from Masamune Dan, transforming him into Kamen Rider Brave Taddle Legacy Gamer Level 100!
[Source: Kamen Rider FB (link 2, link 3, link 4)]