My story for The New X-Factor
The X-Factor's mission is to find new mutants from the aftermath of AVX.
During one of their first missions they find Krystalin a mutant who can create Krystal structures being attacked by Reaper. They save her and before long discover Apocalypse (who is weakened but is still alive) and attempting to create an army with the new mutants. X-Factor has to take on his new Mutant Liberation Front before they can get his hand on more mutants and start a new Age of Apocalypse.
The X-Factor story will go back and forth with discovery of new mutants and the New MLF. The stories dealing with any difficult mutants that cause a ruckus would be stand alone stores with an over all arch dealing with Apocalypse.
Here is a list of mutants that would be on my vision of the X-Factor:
Banshee, Caliban, Callisto, Micromax, Flubber, and Krystalin.