Seeing the pattern develop since yesterday it looks like Apple is slowly going through all the earliest orders and charging cards as the laptop is assigned to the individual. However, in most cases we would be seeing P4S status quickly after the charges. But so far we haven't seen any for the BTO touchbar ones. This tells me that those of us who ordered very early and still haven't had a charge should not worry yet. Apple must be building up for a large shipment later this week. Likely all of us who ordered within an hour or maybe more after the keynote will all end up on the same plane later this week. For the next day or so we will all eventually get hit by the charge and then everyone will start seeing the P4S change.
This is my optimistic view on things and digging into my memories of this same situation from 2012 with the first rMBP, I remember a very similar situation. People will see others getting charges and P4S even though they ordered after them. But in the end it should all work out.