In April 2009, the "World Cosplay Summit Executive Committee" was created to support the development and expansion of the WCS. The Osu Parade has grown to 500 people and 30 representative cosplayers from 15 countries performed in the Cosplay Championship in front of 12,000 visitors.
The first international symposium was held at Nagoya University entitled "Outward Minded: Worldwide Impact of Cosplay and Interpretations in Japan".