The 2001 miniseries, written by Fabian Nicieza, starred Jean Grey, Iceman, Mystique, Toad, and Juggernaut. Time travel was used as a plot device to explore the themes and history of the X-Men, and to resolve several dangling plotlines. The story takes place during several different points in the past, until they are eventually brought back to the present.
2009 series
In February 2009, Marvel announced a second X-Men Forever, which began its run onJune 10, 2009. It ran semimonthly as a regular title, set in an alternate continuity of the Marvel Universe. This second series is unrelated to the earlier series by the same name. The series, written by veteran X-Men author Chris Claremont, was originally advertised as a continuation of the storylines he intended for Uncanny X-Men and X-Men in 1991, but which never saw print because of his resignation from the title and Marvel Comics following X-Men #3. Despite the original billing as what "would have been written" by Claremont had he never left, the series quickly diverged from that idea into a more traditional "alternate universe" title. In interviews conducted with Newsarama and Wizard Universe, Claremont acknowledged that what he was doing in X-Men Forever would never have been possible in the primary X-Men books because of the corporate needs of Marvel Comics: X-Men Forever Alpha, which was released in May 2009, was largely a reprint of the first three issues of the 1991 X-Men. The last pages were devoted to a bridge story meant to segue into X-Men Forever, including a scene that hints at the death of Wolverine. X-Men Forever began its run proper the next month, in June 2009. The story starts by leading directly from X-Men 1–3, as the team is dispatched by Professor X—as well as by Nick Fury, who has become the team's liaison with S.H.I.E.L.D.—to apprehend Fabian Cortez, who was last seen escaping from a disintegrating Asteroid M. The first five issues take place on the same night, and resolve some long-hanging plot threads left from Claremont's departure from the title in 1991. Among the events that occur in the first issue is the death of Wolverine at the hands of Storm, whose true nature is left undisclosed, outside of a stated allegiance to a group called The Consortium. The series revolves around the team of Cyclops, Jean, Rogue, Shadowcat, Nightcrawler, Beast, Sabretooth, and Professor X as they learn about and deal with the anti mutant group the Consortium and a mutant killing condition known as Burnout. The series never explains why Psylocke, Angel, Iceman, Banshee, Forge, Jubilee and Colossus are not part of the team despite being X-Men at the same time in the mainstream continuity. Other major changes from the mainstream continuity included: Sabretooth admitting he was Wolverine's father, Professor X not being re-crippled by the Shadow King during the Muir Island Saga, and Cyclops's son Nathan not being sent into the future or receiving the legacy virus. Sabertooth incorporates himself into the X-Men by claiming he is seeking revenge for his fallen son, Logan. Marvel released X-Men Forever Annual #1 in April 2010, which dealt with Wolverine and Jean Grey's relationship, elaborating on their relationship in more detail, including insight to the betrayed heart of Cyclops. X-Men Forever Giant Size #1 involved the Shi'ar Imperial Guard desiring something from Professor X and the X-Men, resulting in a battle between the two teams.
2010 series
In July 2010, X-Men Forever was cancelled and replaced by X-Men Forever 2 in August 2010. The story picked up on the growing threat of Consortium and the Burnout disease, with the X-Men going undercover from society, as well as the Consortium taking control of S.H.I.E.L.D. It added Mystique and the Starjammers to the reoccurring cast. The series was cancelled at issue #16, leaving several dangling plot threads regarding the condition of Kurt Wagner and the kidnapping of Nathan Summers. Likewise, a cure for Burnout is never developed and the Wolverine clone that tormented Shadowcat in her nightmares is never brought to justice. Mr. Sinister was implied as the main behind-the-scenes antagonist, but never actually appeared. The series ended by revealing the true nature of the "Perfect Storm" character and her counterpart, little 'Ro. This final arc showed how certain events from the "X-Tinction Agenda" arc happened quite differently.
