Sinnoh of the Edo period, about 150 years ago in the Pokémon world

There will be no rivals but you will often meet a girl who looks like Cynthia

ATB system for Pokémon battles with the possibility of capturing Pokèmon even outside battles but with a much higher catch rate

There will be no skills already known in previous games

The player will be able to find trees with honey on them with which he can attract certain types of Pokémon

With the help of some Pokémon, you can go faster and climb. But also glide if you are at a high enough point

When in battle you will be able to use various tools such as berries or some new healing tools in a limited way

The Pokèmon professor of this era will instruct you to work on the completion of the first Sinnoh Pokédex that will be done by hand through the explorations that you will carry out to discover all the behaviors of the Pokémon

There will be many dangerous Pokémon like Garchomp or Toxicroak that will attack the player directly without even waiting for the fight to begin. But the most dangerous Pokémon will be the Bosses, there will be a Boss Pokémon in almost all areas of the map, but it will not be very easy to find them and they will always be much stronger than all the Pokémon in that area

There will be many points of interest, even never seen in the Sinnoh of previous games, which will replace the various Pokémon gyms although many places already known will still be there but with a very different aspect such as Mt. Coronet and the Eterna Forest

Many "new" Pokémon will be present but even the old Pokémon will not be identical to those already known

A lot of information could leak these days (09/18)