They’ve been discussing in season Tournaments
https://www.nba.com/article/2019/12/20/nba-proposes-78-game-season-among-changes
IN-SEASON TOURNAMENT
The proposal calls for teams to play eight divisional games in the group stage of the event, which would begin Nov. 24, 2021 and continue through Dec. 11. (The NBA said the dates are tentative.) The group stage games - four home, four away - would count toward a team's regular-season total.
The six division winners and two wild cards would qualify for the quarterfinals on Dec. 13 and 14, 2021. Semifinals would be played as a doubleheader on Dec. 16 and the title game would be played two days later - with the semis and finals at a neutral site like Las Vegas. Players on the winning team would split $15 million; the winning coaching staff would split $1.5 million.
The NBA said that there is the potential for "additional prizing for players on the remaining final four teams" and that other incentives for teams and fans were "to be determined."