The music will never die, it's been too widely marketed for that to happen, and is known about globally.
The "scene" i.e. dressing up, and going out dancing in a cold hall somewhere in Britain, will die out along with all the paraphanalia, badges, vests, talking clocks etc. It's been on life support for some years now since the last lot of returnees renewed their interest, and then rapidly remembered why they didn't stick with soul music in the first place.