We saw snippets of these characters in the preview for Madhouse Studio's new X-Men anime, and now Japanese broadcaster Animax has revealed full character sketches (Emma Frost is also listed as part of the voice cast; click on the lower right-hand portion of the photo to expand).
In addition to this illustration, an official plot synopsis is up at Marvel. The plot seems to be a mash-up of the Grant Morrison and Joss Whedon years, with a field trip to Japan thrown in for good measure:
The X-Men are reunited following the death of a teammate [Jean Grey according to Animax], and are summoned by Charles Xavier to Japan following the abduction of Hisako Ichiki (Armor). There, they confront the U-Men, a lunatic cult that steals and transplants mutant organs to further strengthen their own army, and the battle for justice is on.
X-Men airs on April 1 on Animax in Japan.
[Via Anime News Network]