I've said this before. But just eliminate East vs West and go to an MLB/NFL style conference system when the expansion teams come in:
American Conference
EAST
Boston Celtics
Cleveland Cavaliers
New York Knicks
Toronto Raptors
CENTRAL
Detroit Pistons
Indiana Pacers
Oklahoma City Thunder
Utah Jazz
SOUTH
Dallas Mavericks
Houston Rockets
Memphis Grizzlies
Miami Heat
WEST
*Las Vegas Basketball Team*
Los Angeles Clippers
Portland Trail Blazers
Sacramento Kings
National Conference
EAST
Brooklyn Nets
Charlotte Hornets
Philadelphia 76ers
Washington Wizards
CENTRAL
Chicago Bulls
Denver Nuggets
Milwaukee Bucks
Minnesota Timberwolves
SOUTH
Atlanta Hawks
New Orleans Pelicans
Orlando Magic
San Antonio Spurs
WEST
Golden State Warriors
Los Angeles Lakers
Phoenix Suns
*Seattle Supersonics*
...............
Do it like NBA used to do it, and how MLB and NFL do it, where divisions matter and division winner automatically gets a berth and Top 4 seed....
If you still want this play-in shyt like those leagues' wild card rounds, give the 5 and 6 seeds to the next best teams, then play-in for 7 and 8 (wild cards). But I'd just as soon go back to an 8-team format straight up, with next 4 seeds following the auto berths...
NBA is committed to an 82-game schedule, so you play the other 3 teams in your division 4x apiece (12 games)...
The other 12 teams in your conference, 3x apiece (36 games; + division makes it 48 games)...
Play all 16 teams from the other Conference 2x (32 games), that's an 80-game schedule there...
Obviously the wins and losses would look different this year if this were the actual set up, but just as a fan fic exercise, this year's seeding, based on right now, would be:
AMERICAN BASKETBALL CONFERENCE STANDINGS
1 Thunder (64-13)
2 Cavs (62-15)
3 Rockets (51-27)
4 Clips (46-32)
_______
5 Celtics (57-20)
6 Knicks (49-28)
.........
7 Pacers (46-31)
8 Grizz (46-32)
9 Pistons (43-35)
10 Mavs (38-41)
___________________
11 Kings (37-40)
12 Heat (35-43)
13 Blazers (34-44)
14 Raptors (28-50)
15 Jazz (16-62)
*16 LV team**
NATIONAL BASKETBALL CONFERENCE STANDINGS
1 Lakers (47-30)
2 Nuggets (47-31)
3 Magic (38-40)
4 Nets (25-52)
________
5 Dubs (46-31)
6 Wolves (46-32)
................
7 Bucks (43-34)
8 Hawks (36-41)
9 Bulls (35-42)
10 Suns (35-42)
________________
11 Spurs (32-45)
12 Sixers (23-55)
13 Pels (21-56)
14 Hornets (19-58)
15 Wizards (17-60)
*16 Sonics**
......................
Again obviously the wins and losses would look different in a set-up like this. The Cavs wouldn't just get to feast on the Sixers, Hornets, and Wizards, who they are a combined 10-0 this season. In this format, they'd only have 6 games total vs those 3 teams, while having to play teams like the Thunder and Rockets a combined 6x, who they are 1-3 vs this year...
It works like this in the perceived weaker conference too, Lakers could in theory feast on the weaker "East" squads but having to play the Bulls (0-2), Nuggets 2-2), Bucks (0-2), and Wolves (2-2) a combined 12x, which this year their records vs those teams is 4-8 as is, if they don't win their division, that becomes pertinent in intra-league standings...