Sorry, but my predictive powers aren't that good that I'd even wager even a few bucks on this, but as you asked, and FWIW, I will guess that you will get your car on January 15th. Sorry Al, but two factors will work against you. First the convertible roll out, as GM is going to try and get as many sold this fourth quarter as possible, and second the two week, annual Christmas BGAP closure (December 19th through January 3rd).
Hopefully I am so, so wrong, and your car arrives Christmas Eve!!!