More BDSP and Legends: Arceus info coming in October.

Not many new changes that we've not already seen so far on new, short BDSP trailer. Hints at post-game Shaymin event.
However, a longer trailer has big Legends: Arceus news.

- Ride pokemon are diverse: Rapidash, Staraptor, Skarmory, Mamoswine, Metagross, Whicash and Hippowdon are all used in means of locomotion as well as the newly revealed Hisuian Growlithe, Dunsparce and Ledian evolutions.

- Pyroneer is a somewhat goofy Fire/Rock type that resembles mix of saint bernard wearing boots and foo dog statues. It has a signature move called Scout which prevents all damage directed towards Pyroneer for a turn and then makes it so all attacks will deal super-effective damage to the foes during the next turn.

- Dunsparce's evolution is a long Normal/Ghost-type serpentine pokemon gourging on its own tail. People in the Hisui region say its ring possesses the power to bring about the end of times. Its signature move Soul Spiral is a special Ghost-type move with a 30% chance to flinch the target.

- Meteoranger is a super strong Bug/Fighting pokemon. It wanders around forests and rescues hurt pokemon from danger. It is the only pokemon that'll allow players to climb cliffs and mountains.

- Starter evolutions are completely different. Only the middle evolutions are shown, however.

- Rowlet becomes a timid geisha with a fan of sakura flowers. It is now Grass/Fairy.

- Cyndaquil becomes a chubby weasel-like creature with an entirely black bod and a fire mohawk and molten steel earrings, necklace and rings. It is very pompous. Remains pure Fire.

- Oshawott's new evolution keeps the samurai theme, but the features are much more sleek than Dewott's. It also only holds a single, elongated shell that resembles a spear and wears some kind of hat. It remains pure Water.

- Blue Basculin evolution showcased on the trailer. It is different from Basculegion. It is a fat, awkward-looking bass. Remains pure Water.