Nintendo has a tendency to over-complicate things, and this is true even in the way that they release news about their products some times. Case in point is a Nintendo Direct that will be happening tomorrow, June 6. It's being called Pokemon Direct because it's (of course) about Pokemon!
The only thing is, the Direct is going to be a mere eight minutes long. What in the world could Nintendo be revealing that will only take eight minutes to explain? Last February they did announce Pokemon Sun and Moon during a livestream. So the rumors are starting to flow that this Pokemon Direct could be about Pokemon Stars, a Nintendo Switch version of Pokemon Sun and Moon.
There's no way to know for certain what will be talked about tomorrow apart from watching the Pokemon Direct yourself. The event starts at 7am PT/10 am ET tomorrow. You can watch it from Nintendo's Twitch and YouTube channels. Supposedly, even more Pokemon news will be coming after the Pokemon Direct. So whatever announcement happens tomorrow is just the beginning.