Calling it, Darnerys doesn't survive the season, and she doesn't play a significant role in the fight against the white walkers.
It'll complete the trilogy of Ned's beheading, the Red Wedding, and whatever happens to Daenerys. And everyone will wonder how they managed to trick us, again.
I was half expecting it to happen at Jaime's charge, but apparently she still has some role to play. Still, the main theme of the show and the books is that "life is not a song, sweetling" - not just in the sense that it isn't all naively good, but that the things that happen in the real world don't always make narrative sense.
Robb's death wasn't really a satisfying ending to his story - or at least it wasn't the most satisfying. Neither was Ned's death. You can tack things on at the end to retroactively justify them - Ned's naivety and Robb's brashness - but I'm guessing Daenerys gets something like the slowly manifesting Targaryen madness/tyrranical behavior.
I at least know that the thing that would fit the ethos of this show least is where Dany and Jon get married and fire and ice turn back the tide of the death, even if that ending also involves a lot of death.