With the permanent closure of some large scale music festivals I think lots of people felt like EDM was dying but I was reading about the whole thing and it was because the owners of the festivals were spending a lot of money making the festivals as fun as possible for the patrons. There are still loads and loads of these festivals around and some of them are even off the radar... EDM will always be around because "EDM" is just a catch word for all forms of electronic music which have been around since the 70s/80s...
Think of your question like this: Will house, techno, electro, trance, trip-hop, IDM, Psy-Goa, chiptune, drum and bass, etc. die? It will never die.