He says in this article in Dutch. http://krant.spitsnieuws.nl/spits/_main_/2013/05/29/008/article/article5_orig.html
Main points:
"I love to be playing Guiding Light again this tour. The audience reaction to that song is very enthousiastic. The same for Sunburn."
"We played an intimate show in London a couple of weeks ago, then I noticed that it was actually pretty awkward without a big production."
"Normally we choose to close with a "bigger" song, but after such a spectacle as this stadium tour, it's good to close with a quieter song (Starlight). It creates bonding in the audience."
""After playing that intimate show I've been thinking. I'd like to do a smaller club tour."
It also points out that he chooses to play guitar less on some songs, to have more contact with the audience.