Hi Sable, and Welcome!! hehe new ppl

First, I want to mention to to Slickboy that Emma didnt merge with the phoenix force, (merge implies that they became one) she let it take over her body, but it wasnt compatible that's why she started burning up and going crazy.
Second, I'm of the belief that Jean and Emma see very eye to eye. Both are very fierce and pationate, yet at the same time calm, collective, calculating, and strong willed.(wow thats a lot of conscenence) They've also switched bodies at one time, and Jean knows Emma intimatly, from when she went galavanting through her mind. I dont necassarily believe there is a piece of Jean in Emma, but more that Jean's just rubbed off on Emma. I think Jean really showed Emma and tought Emma a lesson about humanity, and the choices we make. I think Jean knew that Emma would step up to the plate and be a leader and teacher with Scott.
I dont know though, these are just my ramblings on the subject. Again I bid you welcome Sable, and I hope i have some insight for you.

As always you friendly neighborhood Phoenix of the Fall