This wouldn't make sense because it would likely mean years of declining profits. Traditionally tech businesses do not wait until their product is dead and their revenue is down 50% before introducting new cash oppotrunities. In the Switches case, it looks like either 2020 or 2021 will be its peak followed by decline. I think 2024 would be the latest Nintendo will introduce a successor, 2022 the earliest. We will likely never see another hard generation reset again, so whenever the Switch 2 arrives, I expect Switch 1 to be supported unlike previous nintendo devices