The live stream schedule for GameStop Expo 2015 is in.
In terms of Nintendo related titles, the following games will be shown on September 2:
10:30 AM PT / 1:30 PM ET – Super Mario Maker
12:30 PM PT / 3:30 PM ET – Little Orbit titles
12:45 PM PT / 3:45 PM ET – Mega Man Legacy Collection
04:30 PM PT / 7:30 PM ET – Disney Infinity 3.0
GameStop will be streaming all these games, and more, on both YouTube and Twitch.