Pokemon Legends Arceus is going to be the most ambitious Pokemon game of all time. It will have a vast open-world and Pokemon roaming around in their natural habitats. The graphics look like the most well-designed graphics in any Pokemon game to this date and we also will be getting new Hisuian forms of Pokemon!
Basclulegion is an evolution of an already existing Unnova region Pokemon, Basculin. It posses the souls of all the other Basculin who perished trying to swim upstream. It is a Water/Ghost-type which will be used to traverse rivers!
Wyrdeer is an evolution of the Johto region’s Stantler and will be used to commute on the vast open lands of the Hisui region. It is a Normal/Psychic type.
Hisuian Braviary is an alternative version of the Unova Region Braviary. It is a Psychic/Flying type and will be used to fly around the Hisui region.
Hisuian Growlithe is an alternative version of the beloved Kanto Growlithe and has white fur over its body. It is a fire/rock type pokemon and very protective of its territory.
More Hisuian forms might be revealed in the future, as of now, this is the list.