I don't believe their so-called trilogy will ever happen because of this complicated drama that they created themselves. there are too many negotiations and each party wanted to get the most of the money that this Trilogy produces. You also have Wilder's mentality problem, things are not going to be easy to make this fight happen. I don't know if they will still up to this fight by next year. if that will be the case, then there will be no fruit to their negotiations until one party will accept the offer of the other side.
As for me, the trilogy will happen unless they pay Wilder tons of money to step aside but i don't think Wilder will do that as he will get huge amount in this third fight. With restriction being eased up on some countries, i think they can have this fight with fans in attendance so that it can generate more revenue for this mega drama fight .
I can speculate that Wilder will push through with the trilogy with Fury, and will not accept the step aside money. He is vented on having his revenge to the point that he mentally breaks down. And now that they heard the news and it's on their favor, for sure this team are now scrambling to get him back in the gym and be motivated to fight again.
It will be a lot of trash talk here, specially Wilder's accusations. As for Fury, might be better to give Wilder his shot, win it and then goes for reunification with AJ. Boxing is business so if the money is right for the trilogy, it will happen.