This is interesting, great thread.
It seems the Switch so far is a copy of the Wii, which is a good outlook. It comes out of the gate guns blazing like Wii did, selling comparibly, and it's even the same price. I could see Switch's second year (so, this one) being it's peak, like Wii's, with the big Zelda, 3D Mario, Mario Kart and Smash Bros. released.
There's one thing that'll make all the difference though. Switch seems to have more appeal to the core-gamer than Wii did, considering games like Skyrim, Fifa are practically million sellers, Doom had done more than decently and games previously unimaginable on a Nintendo system like Dark Souls and Wolfenstein are coming. Hopefully this means it'll have longer legs than Wii, and won't drop from it's peak as fast.
Switch could end it's life with a very respectible number. I'm a believer. 
