Listened to three complete concerts now. The only bit I am unsure works is the new working of The Lamb. I know some like it, and I assume the band does, but I could dispense with it. From what both Tony and Nic say, I assume they tried adding the closing section of The Musical Box onto it but decided that didn't work.
The idea that something will be dropped in favour of Abacab seems likely for the upcoming US shows. I can't see them simply adding another 6-9 minutes to the show. That would seem unfair to the British audiences. Abacab was a major hit single here.
I wonder if it might take the place of TIOA? Does that get played stateside? It was not a significant hit there.