The terms of an undisputed matchup with WBO, IBF, IBO, and WBA champion Oleksandr Usyk are still being finalized by Top Rank CEO Bob Arum, who also co-promotes WBC heavyweight champion Tyson Fury.
The venue is the largest remaining challenge, according to Arum, who spoke with the media earlier this week. The Middle East is currently the favorite to win the battle. Wembley Stadium in London would be the alternate option.
"I'm very optimistic the fight is going to happen," Arum told Sky Sports News. "Both fighters have agreed to do the fight, the question is the site and we're talking to the Middle East because allegedly they're going to come up with the biggest purse ever in boxing history.
"And if they do, that's where the fight is going to go because money is money. If they don't, both fighters will agree to do the fight this spring at Wembley... but the fight will happen in my opinion, certainly within the first four months of the year.
"Fighters want to do the best for themselves because a fighter's career, no matter how great he is, is limited and they want to make as much money as possible. So that's the only issue - where will the fight be held? I would believe in the next week that will be determined and then we'll have an official announcement of the date and site for the fight - but that fight is happening."
Fury last competed in a one-sided stoppage victory over Derek Chisora back in December. Usyk last entered the ring in August of last year, defeating Anthony Joshua in a rematch over twelve rounds to maintain his undisputed title.