I have some info about some of the new Pokemon in Gen VI from the gamefaqs board via the poster Ultimacanti. He is a part of the NA Localization team for Nintendo of America in collaboration with Game Freak
http://www.gamefaqs.com/boards/696959-pokemon-x/65136277
AND
http://www.gamefaqs.com/boards/696959-pokemon-x/65153824
First, there will be a major spoiler released about the game in March (but not by him).
Second, there apparently will be a new Eevee evolution, this one a pure flying type.
Third, 4 Pokemon families and descriptions have been leaked:
1. Small dolphin with clown face paint (no clown nose) and a striped hoop around its belly. (summary says it gets 1 evo)
2. A bird that looks very similar to a plover, mostly white body with black stripes, forming something like a hashtag on both sides of the body. Also stripe across eyes. (summary says 2 evos)
3. A fluffball with only small legs and a nose sticking out of it (cannot see eyes). This is the new rodent, but the animal it is based on is neither associated with fluff or Europe. (summary says 1 evo)
4. A small kangaroo with a battery-pouch and two hammer-like hands. Its tail is spiraled (no obvious lightning marks on its body) (summary says 2 evos)
In addition:
New region is divided between Northern forests/mountains and southern coasts / plains.
2 new villain teams
Yveltal and Xerneas are based on yatagarasu and shishigami respectively
The 2 legendaries represent North and South
The 3rd "Z" legendary is based on a shachihoko (check other thread for a detailed description)
New eevolution is flying type
Fennekin line = Egyptian
Chespin line = military / soldier
Froakie line = wizard
My friend had sent me this info but he usually verifies his sources so I am pretty sure that this information is legitimate. If it is not I apologize and will remove upon disproving.