When Nintendo announced their plans for E3 this year, there was a lot of outcry- the company was choosing to skip on bringing its upcoming Nintendo NX console to the show, after all, and to add insult to injury, they would also only be showing off the upcoming Legend of Zelda game.
It turns out that they either changed their mind, or they lied, because Pokemon Sun and Moon will be showcased at E3 by Nintendo after all- they will be shown off during the Treehouse Live segments, the same as The Legend of Zelda (Nintendo does not have anything resembling a traditional show this year). So there you go, everyone- Nintendo are not completely stupid. They will still be showcasing their biggest game of the year at E3.
Source: Rheena.com