Throwing in my two cents (ok it's actually going to be more like 2 dollars) about the starter types. Just note, these are predictions for the final evolutions not necessarily the original starters. My reasons are based on two (ish) main reasons. The first is based on the moves shown in the video, and the second is based on typing and interactions between the starters.
Chespin- Grass/Dark. The video shows it hitting Golurk(ghost/ground) with what looks like a physical attack, and from the coloration of the attack(black, dark purple...) I would have to say dark type attack perhaps ghost, but the design of Chespin doesn't really scream ghost. So I vote dark.
Fennekin- Fire/Psychic. Watch the video, simple fire move, followed by simple psychic move. Also the design is somewhat reminicient of the Vulpix/Ninetales line, and I always thought Ninetales should be psychic, just look at it.
Froakie- Water/Fighting. (Before you freak out about this typing make sure to look at the second reason I state below.) From the attack shown, it could really be anything, and while the animation of the move, and the design of Froakie do not really stand up and yell "hey, I'm fighting type" this leads me to two conclusions. First Water gets screwed and is only one type, or see primary reason 2 below.
Ok here we go, personally, I have wanted alternate starter types since i heard that they were going with fire, water, and grass starters in ruby and sapphire. And there are plenty of other circles (fire beats grass, grass beats water, water beats fire, that thing) that this can be done with. Being one who has loved both dark and psychic types (and ghost, but that doesn't fit the argument) I would love to see starters in this typing. Since they began releasing secondary typing on starters (not looking at Bulbasaur) I have hoped that they would reverse the circle of strength with the secondary typing. While this was partially accomplished in D/P, there are some issues. If they go with the typing I predict (more so hope, cause its Gamefreak, and they troll a lot) this will be fully accomplished. Water beats Fire, Fire beats Grass, Grass beats Water but also, Fighting beats Dark, Dark beats Psychic, Psychic beats Fighting.
This is my hope, and my prediction, however, I have been wrong before.
Also, I hope we see a few more Eeveeloutions simply cause I love Eevee :)