You guys will probably hate me for this.... Die. Ser Barristan has served faithfully and honorably, despite the fact that some of the kings he has served have been complete idiots and madmen. While I want him to live to see Dany take the throne...I think Barristan will likely be on the chopping block. I think he will be used to save Dany on her way to Westeros. With that in mind, when/if he goes, I hope he goes with a bang. He has lived honorably and he think he should die honorably. Black Walder?