Namco Bandai have announced a J-Adventure Mode for J-Stars Victory Vs.. The mode features four different chapters, and involves cross-overs between many of the characters; including non-playable characters like Sakura from Naruto.
Much of the story will appear in visual novel style, similar to that of Persona 4: Arena. You can bet there will be some hilarious moments (when Goku meets Luffy I hope), so it's a great addition for those who are interested in more than just fighting.
J-Stars Victory Vs. comes out March 19th in Japan. Let's just hope Yoh Asakura is confirmed in the game before then!