My gut feeling says the Spurs will end up trading with the Clippers.
To Spurs: Louis Williams, Thornwell, Evans, Harris and 2018 12th and 13th picks
To Clippers: Leonard and add ons
Reason: Already rumors swirling the Spurs don't want to give the Lakers the satisfaction. Nor are really keen on Kuzma, Ingram or Ball (prob because of Lavar)
Spurs don't really get great value back with trading with the Clippers but do get back many pieces that should be able to play under Popovich plus get to pick 2 players in the lotto of their liking. Also have the 19th pick and could package to trade down.