If it is not Deontay, Dillian Whyte will be next.
This fight was the latest in a line of professional heavyweight title bouts, featuring the likes of Muhammad Ali, Joe Frazier and George Foreman, between two former Olympic champions, with Joshua having won gold in front of his home crowd at the 2012 London Games - eight years after Povetkin stood atop the podium in Athens. "The only person who can stop that fight happening is Anthony Joshua".
Hearn told Sportsmail: 'We can not wait until the Wilder-Fury fight to make our decision on AJ's career. "April 13 [the date of his next fight] is what I am interested in". "I should've been down there, I was down there and Sky brought me up to do this, I don't see the point".
However, a calm Joshua responded during a post-fight press conference to say: "I'll fight Fury if he's ready, but, as I've said, he's not".
Joshua's victory tees up a potential super showdown with Deontay Wilder next year.
"I know Anthony Joshua has made his shopping list of who he would like to fight next and that is Deontay Wilder, but that is not to say the deal can be done". Sometimes you have to go in there and really earn your money.
Anthony Joshua and Joseph Parker are headed in different directions.
Fury has previously said on social media that Joshua will never fight him but Hearn witheringly added: "Tyson Fury is the least entertaining fighter I've ever seen". There's no mention of Tyson Fury, the lineal heavyweight champion of the world.
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Among the issues still being ironed out are how long senators will have to ask questions, the person said. Judge also told the committee he has no memory of the incident and does not want to testify .
Joshua was putting his International Boxing Federation, World Boxing Association and World Boxing Organisation belts on the line against 39-year-old Russian challenger Povetkin. "He is slow, methodical, ponderous at times, powerful yes, but they all are".
Mike Costello, BBC Sport boxing correspondent: "It was a brilliantly placed and timed right hand".
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Joshua-Wladimir Klitschko was the biggest fight in British boxing history, and Joshua-Wilder would eclipse that. I can't be bothered any more, worrying about Wilder.
"We're not willing to wait until December", Hearn said.
More than 80,000 fans celebrated Joshua's win and they will now look forward to his next fight at Wembley - planned for 13 April 2019. "Ask yourself why don't they want this?"
A Twitter user said: "If Fury beats Wilder then they'll have a rematch clause which makes April out of the question". The Gypsy King, the Dance Master...can you imagine?
For Povetkin, this is likely to be his end at the top level and he gave it his all, wobbling Joshua on a few occasions early. "It's going to set gate receipt, pay-per-view and endorsement records".
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