A lot can happen between "built" and "shipped", so I would start getting too excited until you receive your "shipped" email. Even after that, I would prepare to wait 30 days minimum if you are shipping by Rail (refer to your window sticker to find out). If your window sticker says CONVOY, you might be able to get it in under 30 days.
Mine shipped 12/10 by rail to D/FW, TX with an initial estimate of 1/6, then delayed to 1/12, then again delayed until 1/17...still hoping for 1/17.
I have not gotten delivery but my dealer said after it is confirmed to be on transport one week. I am in Northern IL and the vehicles come by transport truck. He said the biggest issue in truck drivers from MAP are in short supply. I told him that after it is built I am saying it will be two to three weeks. But after reading the threads WHO KNOWS!
This is a chart from a self-selected sampling of ~500 Broncos scheduled during the last quarter of 2021. It is all based on user submissions, so assume there will be some missing info, some errors, etc., but it may still be useful for your purposes.
Blend date was 4/8 for me... I got my built email on 4/19 and no other email since. I've been checking every now and then but it's difficult putting it out of mind when it's potentially so close.
Hmmmm, well that's a loaded question. Blend date was 4/5. My mods poped on 4/7. A month later I am still in production. Was on chip hold for about a week +. Was given an EST finish/ship of 5/7-13.
So it all depends on the situation you are handed at MAP.
Mine says scheduled for 6/12 and the date is checked whereas production dot became green. Wonder what date I can expect to receive it, these dates are actually kinda of confusing. It initially started with scheduled weeknof 5/15 but it got pushed to 6/12.