A limited, special edition of 3DS XL featuring Charizard will make its appearence in Japanese Pokémon Centers between December 15th and January 14th. Since only a limited number of them will be available (exact number not mentioned), there will be a raffle running between November 3rd and November 26th to determine who will get the chance to buy it for 18,900¥.
It is currently not known whether this 3DS XL will become available outside of Japan at some point but the fact that the Pikachu 3DS XL will be released in Europe later this year is encouraging.