Congratulations on your provisional pass, scoates90!
I recently went through the same CCSP endorsement process while being an existing CISSP.
Aside from the reduced endorsement form, you won't receive any streamlining or fast tracking of your application, unfortunately, and will be placed in the endorsement queue along with all the other applications. This queue is currently running at around seven weeks from the date your application is acknowledged, but you'll likely be told it will take up to eight weeks to complete.
The fact you have the holiday season coming up soon hopefully won't affect you too much, but I don't think the endorsement team work on weekends, so I'm sure you'll receive your email acknowledgements soon now that the weekend is over.