Saw some article rumor just recently that it's likely that Westbrook will be traded to Spurs while Kyrie to replace him in Lakers.
It seems that you're saying is really possible to happen but until it's official and there's not yet actual statement, it should remain as a rumor. But yeah, it's very likely that he'll be traded if the Lakers decides.
There really is nothing he can do if he'll be traded then.
Looks like he will gonna go somewhere and he should really go because the Lakers fans don't like the guy and if he is still in the Lakers in this upcoming season, it would be the same result for them, they will gonna struggle to sync their play together and with the other teams are drastically improving, they won't a chance to get to the NBA finals or might not get to the NBA playoffs anymore. They really need to fix their roosters while they have the chance because they cannot miss the opportunity they have these days for the upcoming season are hard than the last one because some injured star players are more likely to return.
If he stays in lakers then provably he will get all the blame if the team will be on bad shape so its best for him to go on another team and do more better performance to prove that he's still the mr triple double on NBA. For sure there are other teams showing interest with Westbrook because compare to Irving Westbrook's play more games than Irving.