By the looks of things from the nights that still have tickets available, there are still a few thousand tickets yet to be sold.
Interested to know from the ticket and sales nerds the chances of this tour being a complete sell out. Not that it will affect anything band related but for U2 at this stage in their career it would be an amazing achievement if they could completely sell 100% for every date on this tour, i'd love to see it!
From a brief look through the posts and the more experienced folk who live in those areas or have knowledge about how well that particular stadium sells, it would appear that they over 90% in some places.