This looks interesting and might be good news for many TMO members. @Fair of Vorshlag was at this presentation and might have some additional insights on how this might work.
https://www.roadandtrack.com/motorsports/a25436602/north-american-time-attack-council-news/
https://www.roadandtrack.com/motorsports/a25436602/north-american-time-attack-council-news/