They really need to do 2 things
Get some decent third party support, seriously look at all the third part games that have been announced, and you will see that Most of them are skipping the Wii U.
and Start listening to there fans, there are some many things that I've seen WiiU and 3DS owners requesting, things that would proibably be easy to implement and would cost Nintnedo much if anything, like going region free or a acheivemnt system. It's baflel... #16
"Whether it sells 50k or 2M, if devs feel it's a flop, then it's a flop."
What's your point? I highly doubt anyone would say less than 2000 is even remotely acceptable.
"Also, spiritual successor isn't the same thing as a true game in the series. "
No but they generally are similar enough that you can judge the market one based of the other, and that is how it with Yakuza and Shenmue.
Yakuza HD and The Wonderful 101 say hi.
Seriously people need to stop with this "Nintendo Fans only buy good games" BS #1.1.4