Going by what general consensus shows, Joshua will beat Pulev and Fury will beat Wilder. Pulev is probably going to never fight professionally again as his age will probably not allow it and Wilder will probably not fight again if he gets beaten by Fury again because his ego will not allow him to risk a third defeat.
Fury vs Joshua with a re-match clause included will make a blockbuster fight. Providing Fury beats Wilder and if Joshua beats Pulev it will pave the way for Fury with his WBC belt and Joshua with his IBF, IBO, WBA and WBO belts is the fight all heavyweight boxing fans want to watch.
If the Fury-Joshua fight goes ahead, I think Fury will win both the initial fight and the re-match both by a clean knock out 10 second count by being flat-out on his back or TKO by virtue of the referee stopping the fight.
After that, Fury should simply retire and enjoy the multi-millions that he would have made from his career.
It is clear Fury will fight Wilder and Joshua will fight Pulev and after that the two-fight deal between Fury and Joshua will go ahead next year.
There was an agreement already but to say it's clear that they both fighters will win, I think AJ has a better chance on winning, but Fury to win against Wilder, probably 60/40 for me, Fury will be favored though.
If both will win, so let's just see.
It will be a massive pay day for both of the fighters.