Jamie is currently just eccentric and King of Otherworld
Legion was healthy and in control of his powers the last time Xavier saw him, mostly because Xavier was there for him
Probably one of the more qualified mutants on that island is Hope. She doesn't merely copy powers. She manipulates powers. Hope will probably be hooked up to a machine to diagnose Franklin as the machine reads both their biometrics.
It would be a good call back to how Franklin and Hope first met with the later being hooked up to a machine to diagnose her powers as the only mutant born after M-Day.
kinda want sue to join the x-men for a bit, i dunno i think it would be cooolio
“Strength is the lot of but a few privileged men; but austere perseverance, harsh and continuous, may be employed by the smallest of us and rarely fails of its purpose, for its silent power grows irresistibly greater with time.” Goethe
Don't forgot when an evil combo of two certain people tried to possess him and used his power to almost kill his parents. That can't be good for the psyche....
Also, you conveniently left out that Franklin was literally about to destroy everything. That's why Reed put his powers on ice back then.
Be sure to check out the Invisible Woman appreciation thread!