wow. What the hell could possible be so big that it is preventing Nintendo from revealing the NX? I'm sure there is unfinished software and tweaking to be had. That is normal in product launches. But that should not prevent a reveal with some name dropping, carefully planned demos, etc.
Plus, now the "revealed in Fall" from E3 has turned into "NX info by end of year"?
There's nothing "so big" about it, don't build these things up in your head. Nintendo is just Nintendo-ing (being stupid, basically).
This is the same company that wouldn't give any new info on games like Yoshi's Wooly World for like 18 months even though the Wii U badly needed some good news. Every freaking thing is a life or death top secret thing according to Nintendo that they have to hide from their own fanbase.