Well if the costume really did weigh 20kg like he said then I can see that it really would have had an effect on his performance. That said though, it's his own fault and he should not be complaining about it.
I can't imagine that it would have had such an effect on his performance, considering Fury dominated him from the first second of round 1.
As far as I'm aware Fury said he still has three fights on his contract with ESPN, that's after the recent Wilder fight. So that means we will probably get another Wilder rematch, then Anthony Joshua, and then hopefully Dillian Whyte. There's absolutely no point him fighting Chisora who has already been beaten by both Whyte and Fury, so I don't want to see an old Chisora get sparked out once again.
I think the last fight should be with somebody who really deserves the title shot at the time. Maybe Usyk, Kownacki or maybe even Daniel Dubois.
Missed some of your points in my last reply so here it goes;
Potentially could have an effect. However, he's an elite athlete, has discussed on Joe Rogan's podcast that he routinely uses a weighted jacket close to 40lbs, and the fact that a non athlete like myself uses a 50lbs weighted jacket to supplement my work outs, and feel absolutely amazing when I take it off I'd like to think a professional athlete would be able to last 2 rounds without showing signs of fatigue like he did. Well, to be honest from my observations he didn't show fatigue until getting hit in the head several times. Before, the first knock down he actually tagged Fury with some big hits as Fury was leaving himself open due to his aggressive nature of that fight.
Also, the promoters will not risk Dubois. Dubois is an up and coming fighter who will be protected just like Anthony Joshua, and most other big names are protected at first. Think Wilder, and how he hasn't really fought anyone noteworthy except for Ortiz, and Fury. Dubois will have a few years of "tune up" fights before setting foot in the ring with anyone big. Fury would be a big risk at this early stage of his career, and considering Fury is considered to be in his prime I can't see that being good for Dubois who still needs a little work.