According to nme.com, U2 is considering redoing "Pop":
Bono claims that the record was released in an unfinished and unsatisfactory state due to touring commitments. "There is still talk about the band going back in and fixing ‘Pop’, actually going in because the bones of a great album are there," he said in an interview with the Chicago Tribune. "It didn't communicate the way it was intended to. It became a niche record. That's not what it was intended to be. If we'd just had another month, we could have finished it." He continued: "We did a really bad thing. We let the manager book the tour, known in this camp as the worst decision U2 ever made, and we had to wrap up the album sooner than we wanted. There were great ideas on that album... we didn't have the discipline to screw the thing down."
I can't imagine this really happening. Besides, I think it's a pretty good record. People talk about its being an attempt to latch on to electronica or whatever, but there are only minimal elements of that. I don't like all the songs, but the good ones are great.