Apparently they are opening up another round of pre-orders but you don't need an invite for this one:
Dear friends,
We’re bringing back Pre-orders, and we’ve made a lot of improvements behind the scenes. This time, we’ve requested NASA to help us launch Mission Pre-orders Round 2 with optimized load balancing.
Starting now, you can begin filling your shopping cart to prepare for the big event. Pre-orders kick off on November 17 at 16:00 GMT (08:00 PST, 11:00 EST) for one hour only. Your One will be just a click away.
So people without invitations this might be your opportunity to get one.