I find it curiously amusing that the next album is meant to be called Songs of Experience, because there's a Joshua Tree demo (on the deluxe version) that has the title 'Beautiful Ghost (Introduction to Songs of Experience)'.
Hopefully that includes the UK for both SOI and SOE. Muse did arenas around the release of The 2nd Law in autumn 2012 then moved into stadiums during summer 2013, hoping U2 do something along the same lines.