I don't even remember who is still alive in this series, too much time between seasons. 
Even when people have died you really cant count they are out of the game. 
For example the character petyr baelish aka littlefinger couldnt have died even though his death scene was right in the viewers face. You can never say he was the one who truly had died in the world of game of thrones.
Because the reasoning to kill littlefinger is not possible for a character that had started the entire game of thrones saga from start to its bitterend.
It is just mind blowing of how it all connects to the eachother and plays out in the game.
There is a theory that makes complete sense why this character still lives in every detail explained.
https://www.youtube.com/watch?v=XdLletjWIew
This is an updated version of the original and the thoughts put forward a year after with more unveiled.
https://www.youtube.com/watch?v=lsrD2429XEk
Last but not least I add this reasoning video just because I am a long time follower of fire and bloods youtube channel.
https://www.youtube.com/watch?v=b1gDr1NXjjU
