Pokemon presents on that day will focus specifically on legends Z-A news

>Showcasing the starter pokemon which are the kalos starters
>First gameplay footage is shown and the game takes place in the present
>Wild pokemon are shown freely in the open world and some ride pokemon are shown off such as lapras swimming in the sewers and talonflame being the fly pokemon of the game
>Re-reveal of mega evolution and it shows returning old pokemon like heracross and pinsir
>Only 3 (regional) forms are shown off here. One being for Hatterene which is ghost/fairy and the other is grubbin and charjabug which are bug and normal
>The trailer ends off with the reveal of the mega kalos starters. I saw a cool cinematic battle of the mega kalos starters vs the mega kanto starters.
>There is a cool animation at the end which shows zygarde's eyes glowing and some music playing in the background. Then it cuts to black and some red eyes glow instead

Im unsure of this tidbit, but i heard that seasons make a return and greatly impact the gameplay and story of the game. Supposedly the regional forms are based on seasons instead of the region itself

Screencap this