I just called coke rewards program, and they gave me some information.
The coke rewards program was supposed to end 01/01/09, but they extended it to 12/31/09.
The gentleman I talked to said the program will proberbly be extended for another year because of its popularity. If and when the do decide, all members will get an e-mail stating that it has been extended. As of yet they have not heard anything from corporate. (by the way, he said there were over 12 million members)