You don't get an "in production" e-mail from what I have read. You will get a "built" e-mail though. I had a Dec 13 build week and my status has still not changed to in production on the tracker.
It's a new model in high demand, not like ordering from Amazon, it takes a while. This is not an issue for established models unless it has to do with chips. You have no patience. I will end up waiting almost 3 years from reservation to receipt of my Bronco. No biggie, I understand the demand...
It means it’s the first special edition produced of more to come in the future. The Bronco had a first edition, now they will have coming in the future a Heritage edition, an Everglades edition, snd many more.