Some supposed insider with the Hawks posted on a Hawks' fan board recently that the Hawks have worked out a deal for Gobert involving Capela, Hunter and a future FRP. Deal has some contingencies and likely has a 3rd team involved balancing the salary requirement. Deal would happen in early July. It sounds as though the Jazz aren't entirely opposed to trading Donovan, but would want a superstar in return. Barring the Jazz moving Mitchell for a superstar (e.g., Damian Lillard), the Jazz would likely trade Gobert.
This person also thinks that Charlotte is a leading candidate to land Ayton in a sign-and-trade, but that CP3 is pushing for the Suns to keep Ayton.