Continuity breaks with the end of New Mutants #??. This was chosen as a preference to breaking with #78 or anything after #78 before #87 because that would have seriously interrupted the Asgard storyline. No, this is not to ensure that Cable is there. This point is chosen as it marks the return of the New Mutants from Asgard after a long and arduous stay there. It also marks the first appearance of Cable, and the first full appearance of the MLF and Stryfe. Skids and Rusty have just been 'liberated' by the MLF and Danielle remained in Asgard to right wrongs.