It all comes down to one thing: money.
Let me ask this: do you believe that having a new zelda game on launch would not be a system seller? Even if it was hard and expensive to make, do you think that would not pay off? Do you really believe taht there are not people interessed in zelda that are not waiting for a more well supported console to come out?
From PS3 to PS4, the techinology changed a lot, yet Nautghy dog managed to do a port in one year of one of the most otimized exclusives that they had. Does nintendo could not do it too?
What is so hard too understand, look at the games that nintendo has planned for wiiu. Does it look like they are interested in doubling down in make a game that will sell 10 million tops(wiiU install base)?
What you should me was reasons that making a port would be hard, but really you gave no reason why should not happen.
"Hardware design isn’t about making the most powerful thing you can.
Today most hardware design is left to other companies, but when you make hardware without taking into account the needs of the eventual software developers, you end up with bloated hardware full of pointless excess. From the outset one must consider design from both a hardware and software perspective."
Gunpei Yoko
