Highly impossible.
Lucky for us, everything that nitnendo did with sucess was highly impossible too(came back from gamecube era to wii era, make consoles popular again with NES).
3DS was a big turn around, doesn't matter how you look at it. So, i will keep believing. Nintendo never do the expected.
"Hardware design isn’t about making the most powerful thing you can.
Today most hardware design is left to other companies, but when you make hardware without taking into account the needs of the eventual software developers, you end up with bloated hardware full of pointless excess. From the outset one must consider design from both a hardware and software perspective."
Gunpei Yoko







