X-Men producer Lauren Shuler Donner admitted to Empire that Wolverine 2 is the "furthest along of all the X-Men projects on the boil." The sequel will be an adaptation of a Wolverine solo comic book series from the 1980s that follows Wolverine as he travels to meet an old flame in Japan.
It's actually the story we wanted to use for the first Wolverine film, but [Fox head honcho] Tom Rothman preferred to set the character up with an origin story first. This movie will really focus on the relationship between Wolverine and Mariko, the daughter of a Japanese crime lord, and what happens to him in Japan. We're very fortunate to have a story mostly outlined for us [from the comic book arc co-written by Chris Claremont and Frank Miller].
Shuler Donner believes the movie will also be shot in Japan and is hoping "to have the Japanese Fox executives involved in helping and counseling us" in order to maintain authenticity. She says even screenwriter Christopher McQuarrie is "in Japan in his head." But what will really impress fans is the fighting, with Wolverine taking on both the Yakuza and a ninja clan called the Hand.
What's cool about this part of the saga is that Wolverine will be fighting in a different style to what we've seen before. Mariko's father has this stick-like weapon, so Wolverine will have to fight against that. There'll be samurai, ninja, katana blades, different forms of martial arts — mano-a-mano, extreme fighting. We're going to come up with a new style of fighting. It's going to be awesome.