Will the next generation Nintendo console be backwards compatible with the WII U ?

[fatslob-:O]

supernihilist said:
your OP is a joke.
dev costs are up 20% according to reports on new HW
I highly doubt WiiU games are more expensive to make than any other HD console. most ports were made in 6 months.

What would it be like if they kept the same old architectures ?