Yeaaaaah no. Technology moves way to fast for Nintendo to sit on old tech for 5 years. I can only see this if they truly wanted to make this the successor to the 3DS
To be fair, they did adopt a scaleable architecture and patent SCD tech.
It's not unthinkable that they could keep up as costs came down, sucking hind-tit in the power dept just enough to keep up via their hybrid approach.