His inability to trust his team is exactly what is going to make him not be able to perform as well as he should. I would say that there is going to be a gradual decline in his performance as a result of this. He probably won't try as hard as he did before, which means he won't do as well.
I really don’t think that either KD or Kyrie is moving anywhere.
Unlike when he was part of the Warriors team. He trusted the process and Curry gave way for him. He was also the superstar of the team on that moment. Right now, Kyrie won't do that for him. Both of them are trying to be superstars in their own way and that takes out the chemistry that must be built for the team to be effective on both ends. It sucks all the energy when two players are taking different paths. I won't expect too much on the Nets team and its true KD might not even play at his best and just try to keep himself healthy.