Good point, although Nintendo most likely wouldn't go with the latest (and most expensive) designs. For example, Intel was shipping 22 nm Ivy Bridge processors in 2012, while Nintendo used 45 nm for the Wii U.
Its just.... 3D transistors (finFETs) add so much, the jump from 28nm -> 16nm is massive.
Maybe its a pipedream... but I really wish nintendo would do 16nm FinFET, and aim for 50% more performance than a PS4, and use like 8gb of Hybrid memory cube ram, with a APU useing newest proccessor design from AMD.
Then just release the console around 450$ or so (with a standart controller).
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071