National Service Territories
In 2020, National created a restructuring proposal, called the Churchill Plan (pdf). Among other details, this plan recommended that the BSA organizational structure of regions, areas, and sections should be redrawn as 16 "National Service Territories".
As of the May 2021 National Annual Meeting, these NST are official. And while National stresses that these maps are a continuous work in progress, these maps are the most recently made available. No word yet on how the OA will be affected. However, one rumor is that any realignment based on the new territories will be held off until after next year's NOAC.
As these new territories include 12 to 20 councils each, one hopes that these will be further subdivided for conclaves and other "sectional" activities.
"BSA Curchill Plan." Boy Scouts of America, 6 Oct. 2020. PDF file.
"National Service Territory Maps." Boy Scouts of America, 12 Aug. 2021. Web. 13 Aug. 2021.