It was announced that a new version of Korakuen Hall would be built in Tokyo Dome City, with a construction finish time of around 2008, and it would hold 2,500–3,000 people.
It includes the world's largest roofed baseball stadium known as Tokyo Dome (nicknamed "Big Egg"), an amusement park known as Tokyo Dome City Attractions (formerly Kōrakuen Yūenchi), and Korakuen Hall.
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During D-Date's last performance of their 1st live tour in Tokyo Dome City Hall on June 29, 2012, it was announced that Tomo Yanagishita had joined the group as their newest member.