I'm sure this is somewhere in this long thread already.
U2's Upcoming Tour: Three Fan-Friendly Scenarios | Music News | Rolling Stone
So let's pretend that this rumor is true. Here are some ways they could structure the shows to make the fans go absolutely insane.
Scenario 1 - Complete Album Shows
Night One: War + the new album
Night Two: The Joshua Tree + the new album
Night Three: Achtung Baby + the new album
Pros: It seems like the obvious move, since so many bands have had great success with this in recent years. Hardcores will go every night and they will finally get to hear super-deep cuts like "Drowning Man," "Red Hill Mining Town," "The Refugee" and "Acrobat" live. They could even swap around the albums as the tour goes on, forcing fans to fly all over the world for the chance to hear Zooropa or October live.
Cons: It's hard to imagine U2 will want to do something so nakedly nostalgic. Also, it can be a bit lame when you go into a concert and you know exactly what songs they're gonna play and in what order. It takes out much of the fun.
Scenario 2 - Decades Nights
Night One: The 1980s + selections from the new album
Night Two: The 1990s + selections from the new album
Night Three: The 2000s + selections from the new album
Pros: This is still an unabashed nostalgia-fest, but it opens them up to a broader range of material. On night one, they could play hits hits like "Where The Streets Have No Name" and super-obscurities like "I Threw a Brick Through a Window." It'll please the superfans, but not leave the casual ones bored.
Cons: To be frank, night three will be a bit of a letdown. There's plenty of great songs from the 2000s, but it's their weakest decade.
Scenario 3 - Theme Nights
Night One: Hits + selections from the new album
Night Two: Rarities + selections from the new album
Night Three: Band's choice
Pros: If they do this, they won't be tied to a single time period each night. The casual fans can all attend night one, and the hardcores can come to night two and have the chance to hear 1980s rarities like "Surrender" followed by latter-stuff like "Daddy's Gonna Pay for Your Crashed Car" and "Moment of Surrender." Then night three can be a nice balance of the two nights.
Cons: There really aren't any cons for this one. It seems like everybody wins, except the casual fans that find themselves at rarities night and have to endure "Your Blue Room" followed by "A Different Kind of Blue" and "Pete the Chop."