I think NLOTH is a lock. Edge all but confirmed it. At this stage last time out it was between Vertigo and HTDAAB, but the feeling was Bomb. If (please please please) it is a double album, I really hope they do the sea and the sky idea. That would be phenominal.
Just as an aside, Does anyone remember before the last album the idea that it would be called Man? To show the progression as a nice rounding out of the process of growing up. The reason I mention this is to put off all those suggesting this will be their last. I truely believe that their last album will be called Man.
So I look at it like this: NLOTH comes out. They tour as usual, visit everywhere they did on the Vertigo tour. They (how unlikely...) release another album either mid-tour so they can play the songs live, or just after the tour, but don't tour for it. They take an extended break of 4 or 5 years. They record in secret when everyone thinks its over, and in 2016 they bring out MAN, the 40th anniversary of the band, embark on their biggest tour ever, tkaing in just about every city imagineable, and they call it a day.