According to Empire, Colbert recently visited the Hobbit set in New Zealand:
I flew out and watched them shoot some scenes and went to some locations. I saw a 25-minute cut, and it was amazing. [Peter] Jackson knows I'm a big fan of the films.
Asked if he would be making a cameo, Colbert replied coyly: "Could be."
Colbert/Cain 2012 of the Day: Stephen Colbert announced today that he will be co-holding a rally in South Carolina's College of Charleston alongside former presidential candidate Herman Cain.
The Rock Me Like A Herman Cain: South Cain-olina Primary Rally will be held this Friday, January 20th @ 1:00 PM in front of C of C's historic Randolph Hall.