I don't think she'll have the face of Arya at all. Her wolf will recognize her no matter her face.. and then someone else might recognize her through the wolf (Ghost to Nymeria, or Shaggydog to Nymeria).

There's no reason for her not to have her own face... But she'll probably just have it as one of many.

- When Jon was stabbed I actually threw the book across the room and paced my living room for 10 minutes bawling, saying "No, no, no, no, no..." over and over. I couldn't believe he did it.. and then I could. When I thought about it a bit more I realized there's no way Jon can die. This is MARTIN we're talking about here. Jon will probably go in to Ghost, and Melisandre will give him the kiss of life, and he will be whole again. Makes me wonder the implications that will have, though. Since he "died" does that mean his Oath no longer applies?
Since there was a Red Star (on one of the Knight's clothing), Salt (from his brothers' tears as they stabbed him) and Smoke (from his wound).. he might even be reborn as Azor Ahai.

- The entire book you wait for Tyrion and Dany to meet and the chapter where they're FINALLY in the same spot @ the same time... what happens? Drogon shows up and freaking carries Dany away! Hahaha! That was a giant "YES!!!!!!!!!!!" moment.
Dany running in to Khal Drogo's old buddy-from-the-Khalasar at the end there, also helps fulfill the prophecy that "In order to go forward, you must go back." Pretty neat!

For 6+ years I've theorized that the Three-Eyed-Crow was Bloodraven because it just rang true to me. Turns out that was right!!!

In regards to the whole possible Jon = Azor Ahai theory, it fits even more nicely when you think about the fact Rhaegar needed the Prince Who was Promised. The son whose Song is the Song of Ice and Fire! If Jon is truly Rhaegar's and Lyanna's son.. and Azor Ahai.. that all comes true!!