This is just a guess, but I'm thinking the fan voting at The Troubadour show might have been a little trial run for doing something similar for the tour. I think we should have practical expectations of the songs that they are going to perform. Considering that the tour is starting in just a few days and we have seen nothing so far online about voting for songs, I wouldn't expect us to be able to choose songs Kelly has never performed before and especially not ones that have never been released on an album since obviously the band would need to be prepared to play them. What I would expect is something really similar to The Troubadour set-up where people vote for a song as they enter the venue by selecting from a multiple choice list on a Sony internet TV with all the choices being songs Kelly has performed live at some point.