Could be, but I see it going the other way. The more likely thing I see is Fury saying he doesn't need to fight Usyk now because "he shouldn't even hold the belts, Dubois should be champion!" And then Warren makes Fury-Dubois and shamelessly markets a fight between two of the guys in his stable as being the REAL Undisputed fight with marketing that writes itself. This sport has made me a cynical *******
I doubt it changes Furys mind set about it. He'll whine that DuBois is the proper champ and as @NullaLexInk said he'll fight the 'real champion' in DuBois instead. Another clown show.