The first details of CoroCoro have begin coming out and show the starters. We don't have further details but it will come. Keep checking back as we're waiting for more scans with confirmation on the names and more.
* The region appears to be called the Isshu Region (イッシュ)
* CoroCoro states that the protagonists are older than they have been so far
* Before the scans came out, some new information was posted on 2ch including the region name which turned out true, classifications matching the Pokémon's appearance and the aforementioned possible Pokémon names. This information detailled some attacks, classifications, Zoroark's ability and the special event from the beasts. I have decided to post it with thanks to yaminokame for translation. Remember though that the following information is NOT confirmed yet.
o Zoroark has an ability called Illusion (イリュージョン) which will allow it to transform into various Pokémon. How it differs from the move Transform remains to be seen.
o Two new attacks have been announced;
+ A move called Trickery (イカサマ) seems to allow the attack to be calculated using the opponent's stats
+ Another move called Claw Sharpen (つめとぎ) raises the user's Attack and Accuracy stats
o The special event activated by the special Raikou, Entei & Suicune given with the upcoming movie; Phantom Champion Zoroark has been detailed. In this event, when you bring the beasts (it is unclear if it's all three or just one)to the game, a special battle will occur. This battle is against a Level 25 Zoroark which will transform into the various Pokémon. At many points, it will break its transformation to allow you to capture it.
Remember, this information is NOT Confirmed as of yet and so it's quite possible that this information is indeed inaccurate. However, as the region name was accurate, it's also quite possibly real. We'll get confirmation as to whether it's real or fake when the rest of the scans come out.
Info taken from Serebii... i cut out the part about the starters coz people have already posted about them