Promoter Eddie Hearn will move mountains to ensure Anthony Joshua fights Tyson Fury in June.
But the fight that could see the biggest gate in combat sports history depends on whether American Deontay Wilder invokes a rematch clause with Fury.
Fury handed Wilder the first professional loss of his career to claim the WBC heavyweight title in Las Vegas on Sunday (NZ time).
'The Gypsy King' stopped 'The Bronze Bomber', when Wilder's trainer threw in the towel after seven brutal rounds.
The two heavyweight kingpins agreed to a rematch clause during contract negotiations, giving Wilder 30 days to decide if he wants to run it back.
But fans and pundits alike are calling for a unification bout with Joshua, who regained the IBF, WBO and WBA titles in December.
Joshua's promoter Hearn told the Ariel Helwani MMA Show he had already spoken to Fury's American promoter Bob Arum about a super-fight to take place in June or July.
Hearn said he would be an "idiot" if he didn't do everything he could to make that fight happen next.
"Everybody is very clear on this," said Hearn. "Everybody wants this fight - Anthony Joshua, Tyson Fury, MTK, Top Rank, Frank Warren, Matchroom.
"There are some hurdles to overcome on broadcasting, but nothing too much. I promise you, this fight will happen."
Warren - Fury's UK promoter - claimed a fight between the two would be the biggest sporting event the UK had seen, since England won the Football World Cup on home soil in 1966.
But Hearn warned that while both men would want the fight to be in Britain, the money coming from overseas might be too much to turn down.
Joshua's title win against Andy Ruiz took place in Saudi Arabia, with both fighters receiving the biggest paydays of their careers.
Hearn said every major market in the world would want a piece of such a monumental fight.
"Obviously, the UK makes sense from a broadcast and fan perspective, but we must be open to all offers.
"This is going to be the biggest fight in 30 years, so I would think there will be some big players interested in hosting it, including the US."
Should Wilder take up the rematch, Hearn confirmed Joshua will fight IBF mandatory challenger Kubrat Pulev at London's Tottenham Hotspur Stadium in June.
But Hearn still stressed he wanted to make the Joshua v Fury match-up in 2020, as long as both Brits get their hands raised against Pulev and Wilder respectively.
"If we have to fight Pulev, we've got to beat Pulev and if he [Fury] has to fight Wilder, he's got to beat Wilder again," said Hearn. "Both of those things will happen.
"Fury will beat Wilder again and Joshua will knock Pulev clean out.
"You will get this fight. We will do everything that it takes to make this fight.
"Right now, you have two guys and two camps that genuinely want this fight, that genuinely will do everything that they can to make this fight.
"It is the only fight."
