Japanese publication CoroCoro promises that it will contain some big Pokemon news in the December edition of the magazine. The news is apparently related to something that is launching sometime in 2016. Japanese gamers will be able to get their hands on the December issue of CoroCoro on December 15th.
Thanks, MasterPikachu6

Their previously “big news” often just covers directs that kids apparently do not watch.
*BIG PICROSS NEWS
OLD GAMES COMING TO VC!
LMAO!
Really hoping it will be a new pair of games or Pokemon Z even!
Finally a main line Pokemon game?
I’m hoping that the next main Pokemon games will be announced tomorrow by Masuda since he’s appearing on Pokemon TV, then we get in-depth information on the CoroCoro next month.
I hope it gen 7, coming 2017. Take your time.
Watch it just be more info on Pokemon Picross, Super Mystery Dungeon, & Pokken Tournament. Don’t get your hopes up for Gen 7 or a Pokemon Z, guys. Remember what happened yesterday when you expected some great new Pokemon game in the Nintendo Direct yesterday and all you got was a puzzle game?
Well, yesterday we did get Gen 1 game announced for VC, which is more than likely what Masuda was talking about.
I think CoroCoro as actually gonna release something big, given how long it’s been since the last main Pokemon game.
That’s not new. That’s just to shut up the genwunners that hate everything past Gen 2.
… Yeah, can’t deny that. Still pretty nice though.
I’m kinda hoping that Gen 7 would be like the first Mystery Dungeon games, one on 3ds, one on handheld NX.