So I saw a post on 4chan about marvel December solicits (tried to find it on any other sites to see if to compare, but don't think it's officially out there), seems Marvel has something big planned for the Phoenix and Jean grey in December. Almost all the marvel comics have a Phoenix variant cover, and there seem to be sales of short Jean grey /Phoenix stories for 1 dollar each.
Jean grey #10 also comes out that month (looking at sales, marvel might end it there, but if they bring adult Jean back, maybe they could make it her own book).
PHOENIX RESURRECTION RETURN JEAN GREY #1
OCT170824
(W) Matthew Rosenberg (A/CA) Leinil Francis Yu
VARIANT COVER BY ARTGERM (OCT170825)
VARIANT COVER BY ARTHUR ADAMS (OCT170826)
TRADING CARD VARIANT COVER BY JOHN TYLER CHRISTOPHER (OCT170827)
VARIANT COVER BY FRANCESCO MATTINA (OCT170828)
YOUNG VARIANT COVER BY SKOTTIE YOUNG (OCT170832)
B&W Variant also available (OCT170833)
VARIANT COVERS BY TBA (OCT170829, OCT170830, and OCT170831)
In Shops: Dec 27, 2017
SRP: $4.99
http://archive.is/G7fuE
The Jean grey and Phoenix stories that would be sold
TRUE BELIEVERS PHOENIX FEATURING CYCLOPS & MARVEL GIRL
OCT170980
In Shops: Dec 06, 2017
SRP: $1.00
TRUE BELIEVERS ENTER THE PHOENIX
OCT170981
In Shops: Dec 06, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX RETURNS
OCT170982
In Shops: Dec 13, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX CLASSIC
OCT170983
In Shops: Dec 13, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX BIZARRE ADVENTURES
OCT170984
In Shops: Dec 13, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX VS SABRETOOTH
OCT170985
In Shops: Dec 20, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX WEDDING
OCT170986
In Shops: Dec 20, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX WHAT IF
OCT170987
In Shops: Dec 27, 2017
SRP: $1.00
TRUE BELIEVERS DEATH OF PHOENIX
OCT170988
In Shops: Dec 27, 2017
SRP: $1.00
TRUE BELIEVERS PHOENIX ORIGINS
OCT170989
In Shops: Dec 27, 2017
SRP: $1.00
http://desuarchive.org/co/thread/95300719/#95300719
As I said, I saw that on 4chan and can't find the solicit list anywhere else, but I did find a solicit on previewsworld
PHOENIX RESURRECTION RETURN JEAN GREY #1
MARVEL COMICS
PHOENIX RESURRECTION RETURN JEAN GREY #1
OCT170824
(W) Matthew Rosenberg (A/CA) Leinil Francis Yu
She will return, like a Phoenix from the ashes.
Years ago, Jean Grey died and the X-Men mourned her. Since then, the world has changed, her teammates have lived without her and died without her. And now, when strange events start happening all over the world, those teammates can only come to one conclusion - the one true Jean Grey is back!
Rated T+
In Shops: Dec 27, 2017
SRP: $4.99
https://www.previewsworld.com/Catalog/OCT170824
Anyways, fingers crossed and grain of salt, all that...