torok on 22 June 2017
Well, 3DS is on its 6th year. It won't stay around for long. They will either launch a successor (unlikely) or wait until Switch becomes cheap enough to make 3DS obsolete, probably with a dockless SKU and a revision to make it more portable (smaller bezels).
The reasoning to say that a successor is unlikely is that, when the Switch reaches less than 200 bucks, it makes a portable completely useless. The home console gets the best titles, handhelds get cheap spin-offs. The few franchises that were handheld-only are going to the Switch.
A mini Switch as you said, is a likely scenario. We just don't know if they will want to release a SKU incompatible with the dock, so it can have the size of a 3DS.
