Nah,new hardware. If the Switch Pro and Switch Mini are coming, and as soon as Summer, Switch is going to do some crooked numbers the rest of the year.
At this point I think Switch has 2019 and 2020 on lock down. After that things will get interesting again.
You have a good point. Now that people have moved into that line of expectation, I suspect Switch sales (especially after E3) will be abysmally bad, followed by absurdly good sales after the new versions have released.