At cdjapan they have the following information:

Bon Jovi Box (Title subject to change) [w/ DVD, Limited Edition]
Catalog No.: UICL-7001
Format: CD
Number of discs (or other units): 4
Release Date: 2004/12/01
Price: 9000yen (US$ 82.81)
Item weight: 120 g
Usually ships in:
1-3 business days following release

Description
A set of 4CDs and 1 DVD. A Japanese-language booklet included. *Unless otherwise indicated, DVDs are region-2 encoded (Japan, Europe, and Middle East), and carry no subtitles.

(All product details, including availability, images, language(s), special features, and bonus extras, are subject to change without prior notice. Actual item weight may be different from the one indicated above.)

HMV talks about a "live DVD". The DVD in the boxset contains backstage material of live concerts... so you can call it a live dvd in some way... But I don't think they will leave out the behind-the-scenes and interviews dvd and replace it with a live DVD. And I also don't think they will add an extra DVD to the Japanese boxset... we'll just have to wait or ask the oompa's. And I remember that they once said that there were no plans about different releases.