Joshua, 26, is currently eyeing a second defense of his heavyweight title against Kubrat Pulev in November or December before a mandatory clash with New Zealander Joseph Parker in March.
Wins in both contests will then set the former Olympic gold medalist up for the fight of his life against the rejuvenated David Haye or a unification with fellow-champions Tyson Fury or Deontay Wilder.
Hearn is currently working on a fight triple involving Joshua v Pulev, Parker v David Price and Dereck Chisora v Dillian Whyte which is currently being touted for Cardiff but could still change location.
“We still might not able to do it at the Millennium Stadium and we might have to go back to our Manchester plan, so all things are pure speculation but are also in the works,” Hearn told Sky Sports.
“Until thing starts slotting in, I can’t tell you the dates, the venue, the fights, or the undercard, but in time this will fall into place.
“We’ve already got a three-fight plan mapped out, which is November/December, March at The O2 then July at Wembley, which will either be against Haye, Fury or Wilder.
“This night in November or December is going to be huge. The Parker fight could be for March, or it could even be David Price if he is to fight and knock out Joseph Parker and then we want Haye, Fury or Wilder next summer.”
Haye’s scheduled fight with Shannon Briggs has seemingly fallen apart, whilst Fury will hopefully be facing Wladimir Klitschko again on October 29 barring any other incidents blocking the path.
Wilder is recovering from surgery and has a mandatory against Alexander Povetkin or Bermane Stiverne to ponder, although a unification out-weighs any stipulated encounter meaning the American would be free to battle Joshua if an agreement can be reached.
