GL is Mark's strongest album since RPD so I hope that they will actually build the setlist around that album this time, like they did in the past with the new songs.
Piper, Clyde, RD and Gas&TV are all fine quiet songs and BR, Beat the House and Cleaning My Gun are more energetic. Working from that, and, as others have suggested, having Reiver in the beginning and Piper at the end should make a nice frame for the setlist. And maybe some oldies, goldies...