The important thing to me was that Hickman's Jean actually SOUNDED like Jean. For the first time since he started writing her. Also...
Jean Grey
Gateway
Emma Frost
Betsy Braddock
Kwannon
Rachel Summers
Quentin Quire
Stepford Cuckoo (x5)
Chamber
Karma
Charles Xavier
Apocalypse
Selene
No-Girl
Mr Sinister
Cable
Genesis
Exodus
Penance
The M-Twins (2)
Negasonic Teenage Warhead
Sage
Xorn (2)
Lady Mastermind
Proteus
I'm sure I'm missing some, and this is making at least one assumption (that Apocalypse would have Evan revived) and not counting Goblin Queen since she'll be "arriving" on Krakoa in Hellions 3.