After the release of Pokemon Brilliant Diamond and Shining Pearl, and considering that there is currently no information regarding Pokemon Generation 9 games, the next big hit for the series is going to be Pokemon Legends: Arceus.
The game will explore the Sinnoh region in the past, back when it was known as Hisui, and players will be the first Trainers to ever work on a Pokedex and gather information about Pokemon in the region by directly interacting with them - or being knocked out trying.
. Read more on gamerant.com