Personally I think if the Northern Soul HQ moves anywhere it's going to be Germany. A big, big scene that supports loads of Soul nights and at least five weekenders a year that I can think of off the top of my head: Nurenberg (Running as a weekender for over ten years now), Hamburg (Less than a fortnight to go ), Frankfurt, Bamberg, and Lubeck (Where N/S was the smallest room out of five and there were getting on for 3000 people on site), and whilst it might have all started from the Scooter scene, it's definitely evolved into a Soul scene now with very little scooter scene promotional involvement.
Some of the German DJs are also top notch and could work regularly at top allnighters over here because they have the records and style to match the best of the UK's DJs. Ten years ago that wasn't the case, but the top German guys have spent just as much time, effort, and money as the top UK guys over the last few years which is an achievement to be proud of because don't forget that it's nearly all a foreign language for them !
I've been DJing in Germany for ten years now, and I love it. No politics, no oldies, no newies, just good Soul and R & B. Overall the country tends to be cleaner than the UK so there's virtually no litter blowing around in the streets, you feel safer in the cities, and the beer and food are usually superb. What's more nearly everyone speaks English which really helps this ignorant old git who never bothered learning German when he had the chance thirty years ago at school. I've got a reasonable grasp of French, but I've never DJ'ed there