The American heavyweight faces Zhilei Zhang on 1 June, six months on from his shock defeat by Joseph Parker.
The loss to Parker derailed a planned fight against Joshua, but Wilder says the long-awaited bout can still happen.
“People are always going to want to see that fight no matter what,” Wilder told BBC Sport. “I put it in the high 90s [percentage chance of happening].
Joshua and Wilder both fought on the same night last December, with a view to meeting in April 2024, but the Briton was forced to fomer UFC champion Francis Ngannou instead after Wilder’s defeat.
Wilder, 38, says the loss was in part down to his 14 months of inactivity leading up to the Parker fight, but said a big win will resurrect interest in the contest.
“I always said it before, it’ll be a shame if we never fought,” Wilder said of Joshua.
“It only takes that one fight, that one night. June 1st is going to be that night, that one fight.
