Hearn is the hype. I actually think he does want the fight, as does Joshua. I reckon Wilder probably wants it too...at the right price. It's only recently that he's started calling Joshua out and talking about unifying the division whereas Joshua has been talking about it and doing it for a...
There's something seriously wrong if Wilder And Joshua don't get it on this year. There's absolutely no reason not to. The final heavy weight unification fight to become the undisputed champion, undefeated and the holder of all four belts(plus the crap one), 90,000 fans at Wembley, millions...
I haven't seen anything from Parker to suggest he's got the beatin of Joshua. But...it's a huge fight for him (and AJ) and he'll absolutely be on his A game so you never know. If forced to bet on it I'd go with Joshua winning by T.K.O/K.O in the 8th -10th rounds.