U2 said : We are going to try to have a completely different feeling from night one to night two.
So, I don't think it will be 1 acoustic and 1 rock concert. They never said something like that.
Normally they play a 'basic' setlist , with some songs they shuffle with.
With this tour, i think it will be different. Maybe there won't be 2 setlists the same in the European tour or the whole tour.
Hopefully U2 will tell us the more about the tour, soon.