Clippers will never move, the league loves having 2 NY teams and 2 LA teams. I mean, Clippers will move to their own arena probably in Inglewood but they're never leaving LA county. I honestly find it silly since Anaheim would be a perfect home for them to stay in the same TV market while creating their own actual identity.
Sacramento was the big contender to move to Seattle, but they were able to rob Sacramento taxpayers and stayed home. At this point I expect Seattle to get a hockey team before a basketball team. I don't even know who in the NBA is at risk of relocation anymore. Just about everyone has state-of-the-art arenas or are getting them in the near future.