Not sure if this has been posted already. It seems an online configurator somewhat confirms the 2021 Bronco will get the 2.3L under the hood. I'm not at all surprised considering its based on the Ranger. At the same time this could just be something that was entered as a place holder and not true at all. But it would make sense. I've always figured they'd save the 2.7T for the higher spec versions of the Ranger and Bronco. Now if the Bronco somehow had a 5.0....
https://www.caranddriver.com/news/a28183602/ford-bronco-2-3-liter-4-cylinder-ecoboost-engine/
https://www.caranddriver.com/news/a28183602/ford-bronco-2-3-liter-4-cylinder-ecoboost-engine/