This is exactly my thinking. I think we'll get the Elevation/Vertigo treatment for the remainder of their tours before they attempt to cap off their career by topping themselves with the biggest tour ever.
I was watching Rattle & Hum recently and thinking that something 'revolutionary' they could do right now would be to tour like the Joshua Tree Tour again, just them and the audience, that'd be powerful, I know they compromised on this with their use of the small individual black & white video screens on Elevation & Vertigo, but come on, what U2 wouldn't want to see that.