Emily Rogers made a new blog post about the NX's software output

[killeryoshis]

Soundwave said:

I don't even want like 20+ Nintendo games a year. That's too many to buy, 15-16 Nintendo NX titles per year is more than enough and you basically get that amount by unifying platforms and reducing software redundancies (ie: no need for multiple Mario & Sonic games).

A first year lineup of say

-snip-
That would be a hell of a first year, but that's still only 15-16 games. If you have any more, realistically third parties have basically no shot at selling and if this is a unified platform likely at least you're going to have the Yokai Watch, Monster Hunter, and Dragon Quest devs needing some space too. 

But wouldn't more 1st party games sell more systems which in turn make a bigger userbase for 3rd parties to sell? I mean the no 1st party games didn't exactly help 3rd parties with the Wii U in the first few months.