Looks like the rest is left for us to discover in the game. A Nintendo Direct finished recently which revealed absolutely nothing Pokemon-related, and there is absolutely no evidence that there will be anymore reveals. There isn't anymore CoroCoro magazines coming for the games, so that means that the only way things are going to be revealed is via social media things (Twitter, etc.) or on their websites. This has happened before, Doublade was revealed over Facebook.
Also, a few Canadian people already have the game due a possibly illegal "early release". From this we'll probably get some info, this guy got the game two weeks early and is posting videos and screenshots on Instagram (huge spoiler warning): http://instagram.com/kosthedin
Also, correct me if I'm wrong, but the reason we got so much info suddenly for B/W's release was because Japan got the game way before the rest of us. From this, we just got basically the game's entire content.
They may release all the info before the release, but it doesn't look like it. It'd kill the surprise factor of the gameplay, and I'd imagine that they've already revealed everything they want to already. We'll just have to wait the last 9 days until the games are released to find out.
