Originally Posted by
Narasinha
That's totaly beside the point but yes, there is something different to Jean, compared to those various hosts: With all those hosts, it's the PF, an external entity, that comes and inhabit/possess them. In the case of Jean, since she waked-up from the cocoon at least, she was writen as being a part of the Phoenix. Or the Phoenix being a part of her. In Revolution (the comic), Cable tell Jean: "Only the Phoenix could do this" and she answers "and who you think I am?". At no point there is an external entity that comes to inhabit or possess Jean. Even during Morrison's run, it was described as Jean's own power growing and Jean "becoming" a part of the Phoenix. Again, there wasn't an external entity that came and possessed her or gave her power. As shown in Here Comes Tomorrow and Endsong, Jean transcended and became a part of the Phoenix. (and, by definition, transcending is something that comes from yourself. It's not something that can come from an external source)
But one more time, I don't think it's what is going to happen in this book and I don't think it will be a "Phoenix story". It will be a "Jean Grey coming to term with her legacy and confronting her future" kind of story.