Don't read if you are trying to avoid hearing about additions to the setlist.
I was interested to note discussion online about "Your Blue Room" which showed a sort of consensus that the song was thoroughly sexual, along with some lamentation that U2 just don't do that kind of thing anymore. I've always heard the song as intimate, yes, but deliberately ambiguous as to its context. This made me go have a look at Niall Stokes' book to see what commentary there was on it, and the initial quotes are typical Bono: "On one level it's purely carnal, but on another it's a prayer." "It's an incredible thing to say to your lover or your Maker, your instructions, whatever the directions..." etc.
But there were also added comments about the context: "Perspective is an incredible thing... You get moments of clarity every now and then, when you see things for a second and they make sense. I think religious experiences are like that. You see things from a higher perspective and you feel reassured by that. You quickly forget why -- but it did make sense. [And here's what made me take notice...] The astronauts had that kind of experience, and I think that's to do with perspective."
I'm not entirely sure what the connection with the song is intended to be here, but of course (from what I hear not having seen a show live yet), there are real astronauts in "Your Blue Room" this time around. The line also echoed some comments in an interview with the Edge which I recently skimmed (can't remember where; anybody?) that touched on the theme of how a faith commitment enables you to look at life from an overview sort of perspective, as if you were lifted above to see an entire landscape rather than your little issues. (That is my paraphrase.)
From everything I hear it seems as if this show has way too many themes going on, but perhaps this throws a sliver more light on one of them?