There are a total of 111 new Pokemon, with 8 being pre-evolutions, 7 split evolutions, and 11 evolutions of old favorites from generations one through five.

The pokemon receiving pre-evolutions are as follows
-Skarmory
-Absol
-Slowpoke
-Tropius
-Emolga
-Tauros, Miltank, and Bouffalant
-Sawk and Throh
-Audino

The pokemon receiving branched-evolutions are as follows
-Scraggy
-Eevee
-Wurmple
-Basculin

Pokemon receiving evolutions are as follows
-Emolga
-Kecleon
-Mawile
-Sableye
-Garbodor
-Primeape
-Electrode
-Audino
-Drifblim
-Swoobat
-Torkoal

The theme of the games is genetics, and as many have speculated the titles play off the three-dimensional coordinate system and xx, as well as the xy chromosomes.

You're already familiar with the X and Y mascots, but what you didn't know is that Mewtwo's new éclair forme is the inevitable Z mascot. Z's official color scheme will be purple.

The evil team goes by the name of Team Nucleus, and the new type's english localization is the Charm type. This is all the information I can provide for you as of now.