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Namco bandai is in their final phase of J-Stars Victory VS. This is a special game by Namco Bandai which is covering all of their Shonen Jump manga characters in to a single fighting game.

This game is playable on PlayStation3 and PS Vita, but it will be only released in Japan on March 19,2014. No official statement has been made by Namco Bandai to release this game in Europe or any other region except Japan.

J-Stars Victory Vs Complete Guide and Character List


Main Features of J-Stars Victory Vs.
  1.  It contains 52 characters from 32 different manga series.
  2.  4 Players battle System.
  3.  Not only main characters, but anatagonist from manga series are also playble.
  4.  You can also use support characters in game.(Only few selectable)
  5.  Saved game files can be used on both gaming plateforms, PlayStation3 and PSVita. 
 Here is the list of characters that are playable in J-Stars Victory Vs.
One Piece Monkey D Luffy
Portagas D Ace
Boa Hancock
Akainu
Naruto Naruto Uzumaki
Madara Uchiha
Sasuke Uchiha
Dragon Ball Z Son Goku
Vegeta
Freeza
Hunter x Hunter Gon
Killua Zoldyck
Toirko Toriko
Zebra
Gintama Gintama
Rurouni Kenshin Himura Kenshin Shishio Makoto YuYu Hakusho Yusuke Urameshi
Toguro
Hiei
Bleach Ichigo Kurosaki
Sosuke Aizen
Medaka Box Medaka Kurokami Saint Seiya Pegasus Seiya Sakigake!! Otokojuku Momotaro Tsurugi
Dr. Slump Arale Norimaki Fist of the North Star Kenshiro
Raoh
Jigoku Sensei Nube Meisuke Nueno
Katekyo Hitman Reborn! Tsunayoshi Sawada Saiki Kusuo no Psi Nan Kusuo Saiki JoJo's Bizarre Adventure Jonathan Joestar
Joseph Joestar
Assassination Classroom Korosensei Beelzebub Tatsumi Oga Tottemo! Luckyman Luckyman
Chin'yuki -Taro to Yukai na Nakama-tachi- Taro Yamada Bobobo-bo
Bo-bobo
Bobobo-bo Bo-bobo

Characters which can be only used a support are as follows 

D.Gray-man Allen Walker Medaka Box Misogi Kumagawa Bleach Rukia
Nisekoi Chitoge Kirisaki Haikyu!! Shoyo Hinata Hunter × Hunter Hisoka
Sakigake!! Otokojuku Heihachi Edajima Kuroko no Basuke Tetsuya Kuroko To Love-Ru Lala Satalin Deviluke
Sket Dance Bossun,Himeko
Switch
Majin Tantei Nogami Neuro Neuro Gintama Kagura
Sadaharu
Pyu to Fuku! Jaguar Jaguar Junichi

Here is the latest video trailer of J-Stars Victory Vs. which shows all characters game play, several game modes, fighting places along with the 2 x 2 online battle mode.
It should be noted that this is not first game in which all manga series characters are gathered. Jump Ultimate stars which was published by Nintendo and which was never released out of Japan. So I doubt J-Stars Victory will be released in Europe. It would be really nice if Namco Bandai can release this game in Europe, so that every one can enjoy this game. I mean who would not want to play this game?

Reference : Wikipedia