All three are Samsung products.
We received a call from them asking to be sure items will fit through our doorways, then asked if I had any questions. I asked why the NX camera series is no longer supported, probably not an expected comment. It has to be asked though; I would embrace the NX300/500 series if I believed other lenses were coming, but no comment from Samsung and no signs of life in the NX system. They do now have refrigerators with cameras inside - sorry, not quite.
postscript - never mind, then. I visited the Samsung website and their Products tab shows no cameras whatsoever. Appliances, phones with cameras, and IT solutions - no consumer electronics, cameras or NX by any name. How sad.