Fury exposed Wilder's poor fundamentals, that's not going to happen with Joshua. AJ is basically a physical freak who does the basics right. And I'm not sure Fury would be busy enough to win the rounds, I think his best bet would be to hope Joshua punches himself out going for a KO like Wlad nearly did.
I think Joshua beats Wilder, basically doing what Fury did but more of it and with more power. But he's still vulnerable and Wilder's power is legit so who knows.