For the past few months Wilders representatives have ignored repeat offers to negotiate a Joshua fight. Clearly pinning their hopes on the Tyson Fury rematch, the lack of response, failure to explore other options and sheer arrogance they've shown have left them with minimal options for Wilders next opponent. I predict Wilder will likely continue where he left off before the Fury fight, fighting low to mid level opposition with only giving lip service to making the big fights a reality.
Although it may not initially appear so, Fury signing with Arum is a positive move toward the Joshua vs Fury fight. Arum has stated in December that Haymon and PBC will not work with other promotions, this has been the case (aside from a few minor fights) for the majority of PBC's run and thus put Wilder in a difficult position in finding a viable opponent. On the contrary, Arum and Hearn have a relationship at least enough to make fights happen.
If Fury does indeed pull out of the Wilder negotiations then Wilders only viable opponents will be Whyte & Breazeale, both of whom have already been stopped by Joshua. Al Haymon and his cronies will have to take a slice of humble pie if they want to make anything of Wilders career moving forward.