Nintendo tends to do things its own way when it comes to E3, live-streaming announcements and demonstrating games via Nintendo Treehouse Live presentations. And this year is no different.

Today (June 15), Nintendo will begin its live stream at E3 2021 with a breakdown of what the Japanese gaming giant has been working on and will be working on, as well as what games we can expect in the next 12 months or so.

There is even a chance that the rumored Nintendo Switch Pro will actually be revealed. But even if that doesn't happen, there should be plenty to chew on from the live stream. And we'll be bringing you all the biggest news and announcements.

The Nintendo Direct will take place on June 15 at 9am PT, 12pm ET, and 5pm BST. The stream will run for about 40 minutes, followed immediately by Nintendo Treehouse Live, which will be about three hours of discussion, dissection, and game demos from what was shown or revealed during the Direct's live stream.

The Nintendo Direct live stream will be available in the form of a YouTube live video, which can be viewed on Nintendo's website and of course on YouTube. If you are out in advance, it is recommended that you use YouTube's remainder feature to be notified when the stream will begin.

Also, stay tuned to our Nintendo Direct E3 2021 live blog for the latest news.

Now, what will we see -- Nintendo Switch games? But that's the obvious answer.

More specifically, we expect to see The Legend of Zelda: Breath of the Wild 2, first teased at E3 2019. Since then, Nintendo has been rather silent about Breath of the Wild 2, but it is said that the game will be unveiled at this year's Nintendo Direct.

It would also not be surprising to see updates around "Metroid Prime 4," new Mario games, remasters of older games, and something about Pokémon in some form.

But the big thing we are really curious about is the possibility of a Nintendo Switch Pro being revealed. Leaks and rumors have been popping up more and more over the past few months. And E3 2021 is said to be the event where Nintendo will lift the lid on what appears to be an upgraded Switch that could offer some form of 4K gaming.

Nintendo doesn't often announce hardware at E3, but this year may be an exception. If I had my way, I'd like to see a "classic" version of the Nintendo 64.

Even if hardware is missed in this Nintendo Direct, it will certainly be a live stream that fans will want to follow. Check back with Tom's Guide for updates.