In regards to Nintendo and its console future,
I am not sure what they can do?
They got lucky with the Wii because of the casual audience but how would they pull them back in ? No chance in todays market.
I guess as long as they make a profit and have sells like the Wii U is good enough.
The new Just Dance selling better on Wii in 2015 tells me that Nintendo should have gone down the upgrade path and released a Wii HD. They could have moved to updating their hardware every 2 years similar to what Apple do. That boat has sailed though. Probably hit an iceberg and sunk too.