Following Legacy spoilers, we know that Jean Grey went up to Canada to see Logan's former, Adamantium-filled grave empty in the vein of Jesus Christ. So JEAN GREY KNOWS LOGAN IS ALIVE.
Now we are staring to have X-Books entering Legacy, that should theoretically put them after Legacy #1! Right? Why wouldn't she make an announcement to her friends and family that miss him? Maybe she really is going to be the next Xorn and screw over Kitty Pryde and her understudies for getting Belen killed. Or maybe she didn't want to bring that up in front of Old Man Logan ( poor guy's already simultaneously killing Psylocke while stabbing inbred Hulks ) and Jimmy.
My no-prize is that this is the continuation of Jean's horrible torture to Laura. We already know she didn't like her macking on Scott and psychically forced her to go out with Warren to distract her. Then, she continued to hang out with Laura while Warren went out cheating on her. Now, she knows her dead dad is back.