I think you are right on this. Festivals tend to be a platform for the artist to perform more of their hits than current material. Radiohead are headlining V with Morrissey and I cant imagine them playing virtually the whole of their new album. I dont think Morrissey will play 8/9 songs from ROTT at V. Panic,Still Ill,HSIN, Stop me and a possible return for There is a light? add Suedehead, Everyday and 5 ROTT and 3 Quarry songs (The usual 3) and 2 others and you have a great list with something for everyone. It will be interesting to see the first Festival concert list next week!