This will be the big showdown between Nintendo's internal worldview (and marketing), vs. the public perception.
Nintendo insists and markets the Switch as a home console, but there is a real danger that people will perceive it as a quasi-portable (as long as you're not too far away from the charger). This is further muddied by the 3DS line, a still-thriving mobile product which, despite having aging innards, has gone through a few facelifts and is still selling copies because its best-in-class library of coveted games.
It remains to be seen whether Nintendo will keep misunderstanding its market, or actually produce a hit this time.