I think Beric and Tormund are going to go deady.
I think Varys is going to be captured by the Golden Company and brought before Cersei who will have him murdered horribly (luckily he can't have his 'bits' chopped off again).
I think Melissandre is going to die.
I think Cleganebowl will happen which will make lots of 17 year-old boys very happy and me very sad.
Theon is going to rescue Yara but die heroically in the process.
Jaime is going to rescue Brienne but die heroically in the process.
D&D will prove beyond a doubt that they have no idea what the words 'redemption arc' mean.
Qyburn will die by some poison.
We will never find out what happened when Tyrion took the jackass and honeycomb into the brothel, but we will still live happy and productive lives despite having been denied that knowledge.
Pod will become Lord Commander of the Kingsguard.