In my experience only your dealer knows for sure until you get the vehicle and can check the stickers, etc.
Our dealer got the VIN I think the day after (maybe two days after) it was built.
But it sounds like you're close! Now you have to wait for delivery.
Our wait seemed endless...
See
http://www.honda-pilot.org/forums/sh...=&threadid=791 for some discussions of build date vs. when you find out VIN..
and don't forget to post your VIN (see link below) when you get it!
You're almost there!