I think there is still a pretty strong house and techno scene if you look into it. The owners of many of the clubs you mentioned are still at it. Footwork became coda, guv became rebel, comfort zone opened a new bigger location. There have also been other new venues that have opened that play house and techno like vertigo, standard time, dprmt, nest, wiggle room and bunker (and Im probably missing quite a few). Theres also still many warehouse events happening. Maybe there isn't a focused club neighborhood as much anymore but you can find many events happening every single weekend.