Essev Bar specializes in mixing jazz with ethnic strains. Both are on this year's agenda. This year's only import is US folk singer Jon Wasserman. Wasserman and Vinegrad seem to share a similarly liberal definition of folk music. I think it depends on what different people call it.
Folk music is a very broad genre.
Wasserman has released two CDs to date and says he will combine his more commercially oriented material with a folk-music approach. I'll also play some fresh material which I haven't recorded yet. Vinegrad's observations on the British folk scene are echoed by Wasserman's own experiences in the States. I went to a big folk-music convention last year and they had a band playing Balkan music and another playing klezmer music, and Sephardi music has been getting bigger too. I would say it's starting to get very ethnic oriented.