Both the current issues of Weekly Shōnen Jump (2013 #21) and V-Jump (June 2013) — released this week in Japan — contain some additional details about the upcoming Chōgashū (“Super Illustration Collection”) book.
As we already knew, the book will contain 400+ images from the start of the serialization up to now, a special interview with original author Akira Toriyama (though it is not specified to necessarily be a new interview), and a special poster.
Both magazines assert that this is the “first” Dragon Ball illustration collection. This is definitely a false statement, considering the release of items such as Daizenshuu 1 (“Complete Illustrations”) in 1995 and The Golden Warrior in 2010, among other books and compilations of art. Still, none of the collections thus far have been this large. The “Super Illustration Collection” is due out 09 May 2013 for ¥3,800 and is available for pre-order on both CDJapan and Amazon Japan.