Good, solid numbers there!
I'm going to assume the Zelda attach rate is closer to 100%, since this would be tracking physical sales, while Nintendo are significantly behind the curve on the industry average digital sales ratio, so selling 10% digitally would actually be pretty bang on for a sought after title of their's.
I'm not expecting this to cause a significant surge in production though. Demand is high right now, but they'd be better off drip feeding in line with their sales goals, than over egging the pudding and risk ending up with units sitting on shelves should demand start to die down. The last thing they want is any kind of comparisons to the WiiU, and with so few tent pole releases coming in the next few months, it'd be a smart move to stay cautious on long term demand until it's proven to definitely be there.