Kavita Rao, Sofia Mantega, Stevie Hunter & Tom Corsi for Humans Aligned With Mutants

Adam X, Aurora, Bling, Cecilia Reyes, Empath, Fixx, Madison Jeffries, Nature Girl, Omega, Pestilence (Ichisumi), Sunfire, Trance, Vange Whedon, Warpath as missing mutants

Danger, whatever category she fits into.

Avalanche, Destiny, Mimic, Synch, among many others, who are dead mutants that could theoretically be back.