Make your predictions!
I think Mephis' prediction is the most plausible.
I think that in the years to come all printing will cease and all of the talks, both midweek and Sunday, will be via video set-up at the KH.
All brochures, magazines etc. will only be accessible through tablet or smartphone. When/if people still go in field service I think the publisher will only be able to show the householder a link on their smartphone and the householder will scan the Q.R. code.