I think it is still too early to tell. But I'm gonna give a temporary verdict and say No.
My reasonings:
1) In three years down the road 4K, HDR and VR will be a lot more mainstream than they are today and people will be yearning for more power. By that time the PS5 will come out to fullfill that need (And the X2 will be on its way).
2) We are already seeing some full fleged PC-Console games being ported to movil phones (like PUBG and Fortnite). And in some years that will also be a lot more common thus making the Android/IOS market even more competititve against the Handheld market.
So yeah, I think the Switch will sell really well this and next year but the real test of fire will begin in its fourth year on the market.
Now, with that being said, I will reassess the situation arount this time next year to see if there is something that would make me change my mind.
