it's at the point where divisions are kind of pointless. go with 2 16 team conferences or at most, 4 - 8 team divisions. the issue is the layout of where the teams are located where only 10 of them (including the 2 new teams) are clearly West Coast. If including the Texas team and OKC that's only 14 in the West. With that layout, the next 2 closest teams to go with them are NO and Memphis which would move Minnesota East which would allow them to have rivalries with other upper midwest teams.
using divisions,
Pacific - the 4 Cal teams, Seattle, Portland, Vegas, Utah.
Plains - the 3 Texas teams, Denver, PHX, NO, Memphis, OKC
Midwest - Minny, Det, Chi, Mil, Tor, Cle, Indy, Atl
Atlantic- Bos, NY, Brooklyn, Phil, Wash, Orl, Miami, Char