Ouch, anyway, it is what it is, so I guess we can say that we won't see Westbrook in Lakers uniform. Probably the same toxic environment as what Kyrie's situation in the Nets right now. And even though there is an assurance from their new coach that he will be in the starting lineup, Russ still wanted out of the Lakers. So, is he going to Rich Paul? 
Not much detail is released to the public that's why we are ended up in speculations
The term "'irreconcilable differences'' does have many possible answers and if they tend to keep behind the doors, we have to leave it that way
Regardless if Westbrook will be traded or not, the Lakers are still Lakers. It's even better for me that WB will stay and do the experiment one more season as I'm sure WB is already used to playing with the Lakers even if it's just one season.
New acquired players, new coach, new system - they don't need another for it as chemistry will be in question again.