czecherychestnut on 19 January 2015
I think the way Nintendo will do it is to physically include a Wii U cpu (which is tiny and would cost very little, and it could be used as a co-processor for offloading some calculations) and have the gpu emulate the current Wii u gpu. That way you maintain compatibility for little component cost.
Emulating the ppc on x86 is not impossible but would require far more speed than is available or is likely to be available in the next 5 years, and Nintendo aren't known for going state of the art. Particularly with the level of optimisation that Nintendo are known for, the emulation would need to be clock cycle identical, nearly impossible to do without massive amounts of processing power.
