California Grill has a note in the description that says it will be closed starting January 6, 2013 for renovations. But, if you try, you'll find that you can make reservations on some days when they are supposed to be closed. In another thread, someone commented that the wait staff told them that the start of renovations was pushed back until February.
It let me make a reservation for 2-1-2013 at 7:30. I tried later dates during our vacation, but all of them reported "no times available".
When my wife called the dining reservation line to confirm they would be open after we made the reservation, they were clueless. But, interestingly, they said they could see that there were 11 reservations for 2/1/13, one of them ours, and all booked in the last day! The CM said we should probably hold onto the reservation and see what happens in January. She wasn't sure where (or if) they would re-book us if the restaurant wasn't open, so suggested we make a backup reservation elsewhere, just in case.