In ENGLAND the big problem will be loss of venues with many pub closures in particular. I suspect that the number of classic guest+floor spot clubs will fall sharply. The licensed trade was reorienting towards meal service before the crisis and I think that this will be accentuated in surviving pubs further reducing the available venues for sessions. We may see more straight concerts in venues such and churches and village halls.

Big "marquee in a field" festivals will recover while town based venues will focus more on concerts as the number of surviving small venues declines.

The problem will be the availability of a format accessible to newcomers, who don't initially consider performing themselves, in the way that the classic folk club should be.

These comments are based on the state of the ENGLISH licensed trade pre coronavirus and its interaction with the folk scene.