Changes in Roster
Although originally Peter David only seemed to add characters to the roster, the Messiah CompleX event has left the team short two members. Layla Miller was stranded in a concentration camp in an alternate future for a period of time, while Rahne Sinclair has joined X-Force for personal reasons. But, to flush out the holes he created, David has announced two new members to join the team, Longshot and Armando Muñoz (Darwin).
The reasons that David chose Longshot are that he feels that Longshot's optimism and upbeat attitude would be perfect to replace Rahne and Layla respectively. He chose Armando because he is a relatively blank slate. He first appeared in Deadly Genesis and his only subsequent appearance was in the follow-up storyline Rise and Fall of the Shi`Ar Empire. David feels that with becoming a main character in a series, it will give him the chance to expand the character's personality.
At the end of the Breaking Points five-parts saga, David claimed that the cast would be "halved". As of issue 245, Darwin, Strong Guy, Wolfsbane, Siryn and Havok have left the team.
Read more about this topic: X-Factor Investigations