Theyyams are not going anywhere as they are getting more and more popular and being conducted with vibrant participation even today. The beauty of these rituals is the no bar to caste or religion.
Kantara movie is showing a variant or similar ritual further north of Kerala and in the northern Karnataka. I have never been to a bhoothakkola before and was planning this year, but now the events might be very crowded after the movie :)
Yeah absolutely.