The NCAA has presented a plan to Division I conference commissioners that would expand the lucrative men’s and women’s basketball tournaments by four or eight teams alongside an option to leave each field at 68 teams, according to a person familiar with the details.

The proposals were outlined to the commissioners this week by NCAA Senior Vice President of Basketball Dan Gavitt and NCAA Vice President for Women’s Basketball Lynn Holzman, the person told The Associated Press on Thursday on condition of anonymity because no official announcements have been made. The news was first reported by Yahoo! Sports.

Under the proposal, expansion of the 68-team field included both four- and eight-team models. The NCAA would keep its 64-team bracket but would add play-in games involving the 10 through 12 seeds.

If the men’s tournament were to expand it is expected the women’s tourney would as well.

There are many in college basketball who have said they believe the 68-team fields and three weekends of play are ideal but pressure has grown to add teams and games to one of the most popular sports events on the U.S. calendar. Last year, the NCAA Division I board of directors approved recommendations that included allowing one quarter of teams in larger sports to compete in championship events; in that scenario, March Madness tourneys could expand to nearly 90 teams.

The NCAA is currently in the midst of an eight-year extension of its TV deal for the men’s tournament worth $8.8 billion that runs through 2032. That would not be expected to change if a handful of teams are added.

More games would provide a small boost through ticket sales and merchandise.