[Boaz]

After taking a shower this moring, I came up with some more thoughts.

11. Aegon the Conqueror was one of the original three heads along with his two sisters. Dany no longer has siblings... unless Tyrion is a Targ. But Jon does have siblings... Aegon, Sansa, Arya, Bran, and Rickon. Now Sansa and Arya have both lost their wolves, what if Ghost is lost to Jon? Since the Snow/Stark kids know how to bond with animals, mayhaps those three would bond with the dragons. The three heads would be Jon, Sansa and Arya.
12. To defeat The Other the Westerosi must unite. Mayhaps the three heads signify the ability to combat The Other on different levels. Dragons symbolize air superiority. Wolves signify control of the ground. Trout and Krakens are both from the water. Asha, Theon, Victarion, Euron, Edmure, Brynden, and/or Sansa (a half-Tully with full Tully looks) might represent Water while Dany and Jon represent Air and Earth.
13. Arya will soon gain the ability to alter her appearance. She may appear in a form that is irresistable to Dany... and Jon.

How is Jon+Arya any grosser than Jaime+Cersei, Tyrion+any whore, and Sam+... you know what? I can't even go there...

Jon's been on his way with Arya since the first book... I have something for you... close the door... this is no toy... it's so skinny... so are you... stick them with the pointy end... I know which end to use... Who will I practice with?... find a partner... watch... whatever you do don't tell Sansa.

That does not portray Jon in a positive light.

While seperated neither Jon nor Arya missed a parent, sibling, relative or any friend like they longed for each other. And anyway they will find out that they are not siblings, merely cousins... kissin' cousins. Jon told Arya sometimes different roads lead to the same castle.