Will folk clubs survive?
Yes, as long as people wish to meet and sing and play together.
The people will enjoy what ever kind of folk they personally enjoy.
Some clubs will lean heavily in the traditional direction others will lean the other way.
Most clubs are a mixture of both and appreciate both types.
This is what most audiences did in the past ie before clubs when they met in homes, pubs, harvest suppers, et all.
the singers learned songs old and new which they liked and taylored a performance to suit the varied tastes of their listeners.