AJ's 'nothing' fight is his mandatory and if he doesn't fight him he will lose the belt. Pulev has only lost once against Klitchsko. But at his age you expect AJ to get past him.
Fury has never defended a World Title, and he loves cherry picking those unranked opponents.
Hopefully it does happen as i do believe all of the people involved want the fight, which could never have been said about the AJ-Wilder fight when that was being discussed and Wilder and/or his team were ducking AJ.