Zombie Jon Snow said:
I think a lot of sidekicks are doomed. It's not a good time to be secondary to the main story.
Jorah
Pod
Bronn
Davos
Tormund
The Hound
Theon and Yara
The Mountain
Melisandre
Greyworm
Missandei
Varys
Beric
Euron
Gendry
Sam and Gilly
I'd say maybe 4-5 of those live. the only ones I'm fairly confident in are Missande, Sam and Gilly, Yara and Gendry (50/50) and Pod (50/50). I hope for Bronn too.
This is what my wife and I have been discussing most recently. Many of these characters are beloved without being essential to the story, so they can easily be killed while still hitting us in the feels. It'll be interesting to see which of them make it, and which (if any) of the main characters don't make it past the BoW. Those that do (and those not at the BoW) will still likely be at risk though.
Of those who will likely be at Winterfell, I think Sam, Gilly, Varys, and Missandei make it for sure. I'd hate to see Davos, Pod, Grey Worm, Tormund, the Hound, or Jorah go. I think the Hound will survive since I'm hoping we finally get the Clegane bowl. Don't care about Beric. Gendry might make it since he seems like he may have a role in the aftermath solely based on the fact that he is still alive at this point in the series.