The official synopsis for the episode is: “Stannis and Davos set sail with a new strategy. Dany meets with supplicants. Tyrion faces down his father in the throne room.” The most likely chance for death out of those options seems to be Dany meeting with supplicants. She’s been in a pretty killer mood lately, and we wouldn’t be shocked if she decides to off a few more Meereense nobles. But maybe the promo for the episode can give us some better hints.
During the promo, we see Ramsay Snow and some Bolton men clashing with some nervous-looking Greyjoy soldiers, probably at Moat Cailin, and it looks like we have our answer. While we don’t expect either Ramsay, Theon, or Yara to perish just yet, we don’t like the odds of any Greyjoy soldiers surviving the Bolton invasion. So while we don’t think any major characters will be killed off in Episode 6, the episode won’t be short on bloodshed, as some Greyjoy and Bolton henchmen should meet some gruesome ends.