Image by marthouli via Flickr
However, no director is attached yet nor any of those casts too while it appear that the movie may only have Christopher McQuarrie's script to follow.
But until Fox made any announcement officially, treat this as a rumour still.
Crossing over to the MTV Splashpage, it was reported too that:
Some of those people are still unannounced, as the director's chair for "Wolverine 2" is currently unfilled. "X-Men Origins: Wolverine" director Gavin Hood has expressed interest in the job. Additionally, some have speculated that the position could go to Bryan Singer, the former "X-Men" filmmaker that has close ties to screenwriter McQuarrie. Singer is already back in the mutant fold as the director of the upcoming "X-Men: First Class," and whether or not he gets involved with Logan's trip to Japan remains to be seen.