You have until the end of January to switch dealers and place an order. Now that ordering has been pushed back, the dealer-switching deadline might get pushed back as well. Regardless, you still have at least 6 weeks to change. I am planning on changing, but I figured I would wait until just before I was ready to order, since there's no real need to do it early and just in case I might change my mind and Ford limits me to one change, I can keep my options open.