A brand new scan from Shonen Jump has been released! It confirms Kakuzu, Deidara, Sage Jiraiya, and in Naruto: Ultimate Ninja Impact! It also confirms the Japanese box art and a Japanese release date of October 20, 2011. By the looks of it, and we could be wrong, the fights featured in this scan are Naruto vs Kakuzu, Sage Jiraiya vs Pain, Sasuke vs Itachi, and Deidara vs what looks to be Leaf ninja (but should probably be Sand ninja, when thinking about the anime/manga)
By the way, in case you are wondering, the box art for Japan does differ from North America and Europe. As far as we know, at least.
Naruto Shippuden: Ultimate Ninja Impact is an action/fighter under development by CyberConnect 2 for the Sony PSP. It will feature over 20 playable characters, co-op play, boss battles, 1-on-1 fighting, and 1-vs-100 action. Naruto Shippuden: Ultimate Ninja Impact is scheduled for release by publisher Namco Bandai Games in Japan on October 20th and Europe on October 21st, The North American release date is rumored to be September 27.