We're going to have a lot more than 30 years of it. Electronic music has morphed into genres based on Sound Design (Timbre) rather than Melody and Harmony (Pitch) and we're still only beginning to explore that, whereas we've been exploring music based on pitch for at least the last 800 years since gregorian chant started.

Electronic music is so broad that thinking of it as a genre is like thinking of "music played on instruments" as a genre. EDM will be around forever (the "dance" moniker is redundant since that's just something people to do music- e.g. each of Bach's Orchestral suites movements are based on a dance type), but the stuff in even 50 years will be wildly different to what we have now. Probably. Kind of interesting that house has been around for 30 years now and it's still quite similar and going strong.

Likewise, it never ceases to amaze me that EDM/dubstep/trance/house/techno continues to find ever larger audiences. This genre(s) has little in the way of songwriters, (mostly, just famous DJs), virtuoso players, charts, or named bands. Yet, I see festivals like TomorrowLand and Electric Daisy Carnival draw crowds challenging Woodstock attendance.

allow me to promote a friend..

at my local cafe there is a dj that always has a bunch of gear out on the table

we would often be working side by side at the cafe for hours and one day i asked what thae were working on

i learned that thae listen to new edm songs posted to soundcloud and the artist union, from a collection of genres, and choose thaer favourite songs, makes mixes, and releases them online with some personal collage work

https://twitter.com/BestEdmMixDaily

the chill mixes are my stuff, but there is also dubstep, future house, trap, and a metal'edm hybrid that the dj is most proud of

The names might change, but that stuff will probably outlive "rock & roll".