Kazunori Yamauchi just posted on his personal twitter account that the next Gran Turismo 5 update will come in December, around Christmas.

For the moment we know nothing about what the update will actually include, but we can't say that Polyphony Digital didn't give an amazing level of support to the game, that has just passed it's first year anniversary on Thanksgiving (And yesterday in Japan) and has been constantly updated since it's release. 

Since we're talking about Christmas and Gran Turismo 5, I present you with my own personal GT5 Christmas Gallery. Feel free to use the pictures to make some cute Christmas cards if you're so inclined.