That's just tomorrow. They should announce those events at least 3 days in advance so that people have the time to hear about it and fit the event in their schedule in my opinion.
Personally I hope to see the first images or even a small video, why not of Metroid Prime 4. Nintendo needs to motivate me if I am ever to get a Switch.
But yeah I know what some of you might say, it's too early for a trailer for that game. Though I might settle for a teaser.