Right.
Some are really stretching here.
To be honest, while Nintendo acknowledged NX, gave a release period and announced Zelda for it, they haven't properly unveiled it yet. By proper unveiling, I mean showing the device(s), announcing more games and clearer infos on NX itself/themselves, with all the bells and whistles of the case. So, I guess NDAs could properly end when the official unveiling event happens. In the same way Nintendo is maintaining absolute silence on NX so far, except the tidbits they gave a few months ago to stakeholders.
On DQX/XI: they have been actually announced (the DQ producer read it from the event's script), but SE backtracked right after. That's not a proper announcement, it's more like a "controlled leak" IMHO.