Talked to Blue Ox and they had not got there hands on a new Bronco yet. Keep looking for some spec's on the D ring brackets that come with the modular bumper .
I know they are wider than normal brackets, looks like 1 1/8" to 1 1/4" wide with a 7/8" hole. Will have to open up the Blue Ox adapters to fit.
Also don't know what Ford is going to say about flat towing using the brackets.