If U2 didn't have the tour to contend with, the album would be finished much sooner. Cause they'll probably spend the better part of October rehearsing, and then November- mid December on the road, and then christmas break. So after this month, they probably won't seriously start working on the new album until next January. I fear the momentum will be lost, and that Rubin will be doing other things by then.
* I am glad U2 are honoring their fans in Australia, New Zealand, Japan and Hawaii. I'm glad you are getting your shows, you guys deserve them. I'm just saying that if your shows would've been done in march/april, they could keep working on the album right through until it's done. However, they did what they had to do then (postpone the tour due to Edge's daughter), and they're doing what they have to do now (finish the tour dates). I don't slight them any.