I think Nintendo's basically found their "formula" this generation ...
Console quality games that can be played anywhere, anytime is the "wow" factor.
Combine that with genuinely good, modern marketing (Superbowl ads, cool commercials).
If they can stick to that, they will do quite well this generation, hopefully they do not revert back to their lazy habits of the past though.
No reason to re-invent the wheel here, this works so stick to it. When Nvidia's chips scale down in cost, incorporate those into new Switch models and sell various versions simulatenously too IMO as the years go on. Do not sit around for 5 years letting your hardware grow stale and the enthusiast part of your base to grow weary.
You have a good thing going here, please do not fuck this up Nintendo.
