'08 was an unusual model year, with production beginning in January and will probably continue until the normal late-June changeover date.
If '09 is a "normal" model year with production beginning immediately after the late June/early July two-week summer vacation for the assembly plant workers, then expect the order guides for the '09 models to be available in late March or early April, with the order bank opening in late April or sometime in May for production beginning in Mid-July.
IOW, keep an eye on Bobby Williams' website and download the first of the '09 order guides as soon as they are available - my guess is late March. Click on this for Bobby's website:
Sunrise Ford Fleet, 16005 Valley Blvd, Fontana, Ca, 92335