For me, at least, Nintendo have been shooting themselves in the foot for the last two generations. They're arguably still the best game developer around but a combination of playing things sickeningly safe while being held back by hardware has resulted in a pale imitation of what they used to be.
I don't really understand this view. Every piece of hardware they've released over the past 10 years has tried something different, some of it's worked some hasn't. Is that playing it safe?
The actual games they're putting out are consistently high quality, as good as anything they've ever done, and I don't particularly see the 'power' of the Wii U at this point holding them back. Would Mario Kart 8 instantly be twice as good as what we have now if the console happened to have PS4-level power behind it... I don't think so. It could be better if it had a decent online network infrastructure behind it, but that isn't down the a limitation of the hardware it's down to arguably out-dated ways of building online gaming systems.
I'd like to see whatever the new system is sort out the terribly sluggish operating system that plagued the Wii U, keep it affordable, and just keep on delivering their great games.