I think the timetable does fit.

Fury KO8 Usyk Feb/March for Undisputed title which disintegrate and dispersed for Joyce et al to pick up titles.

AJ KO 4 Whyte April pick up alphabet strap

Wilder KO 3 Ruiz April pick up alphabet strap and defends it successfully in the summer/autumn.

Fury KO10 Joshua Summer and retires after 1 send off fight.

Wilder will avoid Fury as he has effectively been beaten by him 3 times.

AJ is damaged goods and takes the opportunity to take Wilder after another warm up against Chisora Autumn or for a belt. AJ is a money fight for Wilder and thinks he can cash in on him early 2023.