I've got back to following my initial impression. This might happen in 2023. And I'm not at all sure one or both of them won't pick up losses elsewhere.
It will happen when their both Tyson and Lewis age, and it will be a exhibition match for charity. lol
This discussion is exactly what is wrong with boxing, they need to fight each other in their next fights. The best need to fight the best in their primes or there is no credibility for boxing.
I believe it will happen once Joshua finishes a fight with whoever. And the Fury-Wilder rematch. I am going to FURRRRY!