A lot of the production crew on the lower left part of the live cam. They seem to be discussing something.
The question is are they production getting a talk on how to film it or teams getting a pre-race talk? (probably the former but you never know)
My guess is that teams will not arrive until real late in the process.
The teams will probably get the pre-race talk (and possibly even the interviews) off site, then go to Times Square a few minutes before 3 AM and then a few minutes after 3, the usual explanation of the race, a twist (if there is one), and the famous "Good Luck, Travel Safe, GO!".