As ever, excerpted from an interview by Newsarama:
"Claremont shares that the main characters throughout the five issues will be Cannonball, Magik, Magma, Sunspot and Warlock."
Five issues, New Mutants circa 1987 pre-Simonson...but Rahne is not a main character.
Someone clue me in, is she still pregnant? Is she carrying the mutant messiah or whatever the latest crossover was about? I've not spent a dime on comics for at least a year now. :)