At the Nottingham concert, fliers were found which seem to contain hidden text which may relate to the World of Year Zero. Axposing the flyers to a blacklight did no good, however careful insopction of the flyer itself revealed the following:
ORGAN DONORS
KUTSKI DIGITAL ID ROOSTA MATT HANDY
Update: Turned out to be a false lead. The "hidden text" turned out to be artifacts from another flyer, printed at the same press.