In Avengers Vs X-men #12 Hope summers origin is some what told by tony stark but " solely on Conjecture"
like we all know Wanda is the reason why hope was born. Clearly there is some connection between Wanda's chaos/Chthonic power using the Life Force, and the Phoenix Force, to create the birth of Hope in Alaska.
The phoenix Force is life and death and the time Hope was born Wanda still had The Life Force (power or entity) within in
So Wanda and the Phoenix Force "Maybe Jean" are the reasons for Hopes Birth, like "God the holy spirt " being the reason for jesus christ birth or in star wars The force being the reason for Anakin Skywalkers birth.