I think the sequence is that you receive the "New Vehicle Protection" email. With that email its just for info - you don't need to do anything and you don't need to reply to it, just read it...
Then you have to wait for the next email - which is the "Checkout" one. I think the gap between the emails is around 2 weeks based on a sample size of 1 - rs200evo - the only person we know that has received the checkout email.
The checkout email then gets you to lock in any finishing treatments, delivery location and finance options etc. Not sure about number plate, but imagine that's also covered here. It's also at this point that you legally confirm the order...
But what happens next? Lets wait and see.. maybe a 30 day wait... maybe less? Whatever happens, I'm sure it will happen soon.