Dear Reader:
Ori & the Blind Forest dev continues to share frustration over lack of access to NX dev kits
Once again, coming from Moon Studios' Thomas Mahler...
I am sour on this issue. Treating hardware like it's your baby and keeping it away from devs is exactly what you don't want to do in 2016 and one would think that Nintendo learned their lessons with the software-drought the 3DS and the Wii U were both suffering from. The Wii U never recovered from it and the 3DS needed a price-slash and a huge turnaround to remedy the situation after that.
Also, it's not like I have no experience with this - Having 'engine support' doesn't necessarily mean that you can actually make builds and have a proper developer environment ready. I'd be literally SHOCKED if any of these engines support any platform features the NX might have to offer at this point. Shocked.
Nintendo should at this point be sending out devkits to whoever wants it - They need software and if they'll again only rely on 'unprecedented software support' from the likes of EA, I wish them the best of luck. They'll need indies and smaller studios to step up and make use of their (hopefully) innovative hardware. At this point, they need devs WAAAAAAAY more than the devs need them. Steam, X1, PS4, etc. are all super nice environments in which developers can thrive - The NX isn't yet, so they need to sell devs on it. They're not doing that by keeping everything close to their chest. It's just a silly situation.