Nintendo have announced their plans, at least in a high level overview for E3 2017. This year, thei digital presentation will be known as Nintendo Spotlight and will stream on Tuesday June 13 @ 9am Los Angeles time. For those who won't be at the show, you can see your time below, noting that it will be Wednesday June 14th here.
In addition, Nintendo Treehouse: Live @ E3 will be returning, with a showcase of upcoming games for Nintendo Switch and the Nintendo 3DS family of systems.
“Our various E3 activities will showcase the next steps for Nintendo Switch, from a summer of social competitive gaming to a holiday season highlighted by a milestone Mario adventure,” said Reggie Fils-Aime, President and COO, Nintendo of America. “With Nintendo Treehouse: Live at E3, fans at home can watch in-depth gameplay of Nintendo Switch and Nintendo 3DS games launching this year.”