I believe the estimated delivery date is the worst case scenario. There's usually an ETA Start and ETA End date (before source code was hidden). I believe those start and end dates are the range for delivery. Worst case, it comes on 11/27 but I'm sure you'll get a pleasant surprise when it gets...
I don't think COTUS necessarily lags with info. It's just that the dealer vehicle tracking system has more details whereas the COTUS site just shows high level steps (In Order Processing, In Production, etc.). There are sub-statuses within those high level steps. I believe they were visible...
Lead time quoted from a recent dealer bulletin was 10-12 weeks, but keep in mind upcoming down weeks (namely Christmas). Based on that, you might want to order in November or now even, depending on if you are able to take delivery sooner just in case.