itll be a cleaver marketing tactic.... thats also if nintendo arent going to deliberately create a shortfall of units to create a hype for demand.
think about it, make xxx number of units but not enough to cover demand then creates desperation and more hype, also fools people into thinking because its short number of stock must mean its something to own if its always sold out.
also, we know too well that fans will buy the system for Zelda alone, inc Zelda fans........ so hey what about mario kart fans..... lets delay this game then when we predict sales of the console to slow down, then lets release this game and it should boost interest again and sales.
me personally id rather get zelda on the wii u (if i had one) but like the reason why i dont own a wii or a wii u is why i wont buy the switch.