It must entail a lot of money for Wilder and Pulev to step aside and give way to let the Britons fight each other huh.IMHO, the way i see on his last fight against Ruiz, Joshua's confidence is still not there and making this fight with Fury is not a good idea at the moment. That would be history though but letting a less than 100% Joshua in a history fight is just like depriving boxing fanatics the maximum fun that a boxing fight could give us.
But this all depend on how the greedy promoters negotiate, if they think the Fury vs Joshua would generate huge revenue i think they would push for it.
It is a possibility that we could see Fury and Joshua fighting with the international travel restrictions and the uncertainty about when everything will be sorted it is a high possibility that the fight would happen before the Wilder trilogy, Kubrat Pulev accepted the offer that he would step aside if he gets a good payment and if Wilder accepts that then we will see another one of the biggest fights in boxing.
As per this article:
https://www.boxingscene.com/fury-promoter-convo-wilder-step-aside-never-taken-place--148638, someone offered them, but it doesn't mean that the fight will happen in Britain, let me quote:
"That’s where we are at the moment. There’s been offers made from various countries and organisations to host the fight between Tyson and Anthony Joshua. One of these countries we signed an NDA [Non-Disclosure Agreement] with, which I can’t go into. When I say me, I mean myself, MTK on the behalf of Top Rank and I know Matchroom signed an NDA as well.
And for this fight to really happen, all the parties should agree to everything though, not just how much step aside money Wilder or Pulev will get. Managers, organisers, TV's everything, so it will take a lot of effort just to shoot down the trilogy and push Fury vs Joshua here.
Frank Warren, who along with Top Rank is the promoter for WBC heavyweight champion Tyson Fury, agrees with his promotional rival, Eddie Hearn, when it comes to rejecting speculation that negotiations have begun for a fight between Fury and unified champion Anthony Joshua.
So I think the trilogy will still push through, obviously, it is rescheduled later or early next year and then they can sit down with the next best option for Joshua vs Wilder/Fury.