Yes RCI is doing the December Celebration and it is not too early to book your cruise. I have already booked my December cruise. It's an 8 nighter on the Independence OTS leaving out of Ft. Lauderdale on December 8th. This probably is the best time to book, these cruises fill up fast. The double points apply to Diamond, Diamond Plus and Pinnacle members. I saw a really good 7 night cruise leaving out of San Juan on the Adventure OTS on December 9th. You could book a Jr. Suite for $1119.00 pp. DW and I have done this one twice.