Lastly, Kamen Rider Genm Part 3 Final Legend Stage will feature Kamen Riders Ex-Aid and Genm getting forms based on Taiko no Tatsujin, and Kamen Rider Battle: Ganbarizing respectively. This story will be released as a DVD special in April 2017 alongside with the DX Taiko no Tatsujin Gashat in one set.
[via Kamen Rider Facebook]