In an interview with the UK Sun, Hearn noted that their first priority is for Joshua to regain the world heavyweight title.
Former Boxing champion, Anthony Joshua will fight the winner between Tyson Fury and Oleksandr Usyk.
That will be if Joshua defeats Daniel Dubois in September.
This was revealed by Boxing promoter, Eddie Hearn.
Joshua’s last bout came in March, when he knocked out former UFC champions, Francis Ngannou, in the second round.
In an interview with the UK Sun, Hearn noted that their first priority is for Joshua to regain the world heavyweight title.
He said: “I expect the winner of the December fight to fight Anthony Joshua, if he wins in September.
“There’s no decision yet made on the opponent, there’s three or four in the mix. But yeah, that’s the absolute plan.
“The first priority is to regain the world heavyweight title and obviously undisputed has always been the dream.
“So I think we’re two fights away from becoming undisputed. But, we’ve got to win them.”
Last month, Usyk beat Fury via split decision in a historic showdown.
The Ukrainian’s win saw him become the first boxer since Lennox Lewis in 1999 to unify the heavyweight division, taking the WBC title off Fury and adding it to his WBA (Super), WBO, IBF and IBO titles.