When will Nintendo officially reveal NX?

[JEMC]

TheLegendofDS said:

JEMC said:

There's a rumor saying that this year's Nintendo conference/Direct (we still don't know what they'll do), will be 1 1/2 hours long.

Well even if that rumor is true that still leaves the possible NWC and,unless launches in 2017,Nintendo will most likely want to promote the new system and it's games

90 minutes is plenty of time to honour Iwata and talk about upcoming 3DS and Wii U games (with special attention to Zelda), and still have +45 min to talk about NX and its games. And then there is the Treehouse streams.

And because that's not enough, there's Gamescom, TGS (for japanese third party games given that Nintendo doesn't attent it) and maybe even a couple of Directs. That's plenty of time to talk and show NX even for a 2016 launch!