During todays special airing of Pokémon Origins within Japan, a new Mega Evolution was showcased. This is an alternate Mega Evolution of Charizard. This Mega Charizard is exclusive to Pokémon X and is called Mega Charizard X. It is also to be a Fire/Dragon-type Pokémon with the new ability of Tough Claws which improves the power of Physical attacks.

Great answer!