As far as Fury vs Wilder was concerned, officially the first fight ended in a draw therefore Fury defeated Wilder twice. Usyk on both occasions when he defeated Joshua showed how superior he was but Joshua never had the smartest boxing brain, he was never on the same level as Fury or Usyk. If Fury and Usyk do not get the fight on the balance of power will eventually shift to other boxers, I hope we see the fight.
Fury defeated Wilder three times, and Usyk declassed Joshua twice. No matter how they fight with each other (Wilder and Joshua), it is unlikely that this can somehow change their position regarding the Usyk-Fury pair, at least until we see the first fight between Usyk and Fury. Theoretically, one could speculate that the balance of power in this four could turn over over time, but these boxers are at such an age that in the coming years they will simply end their careers.