He should prove himself again against the likes of Povetkin or Pulev before being remotely considered for another title shot.
We could have discussed it, if it was just a physical issue with Stiverne in the fight. However, he went on a straight line into Wilder's jabs without moving his head. He was standing in the middle in the ring without moving, which allowed Wilder to attack him viciously. He didn't cut the angles. So it's not primarily about his physical conditions. Even if he was 100% in shape, there is a lack of boxing skills for him to beat Wilder. Moreover, if you really step into the ring with Rhabdomyolysis, I think there's no way you can survive 12 rounds, being knocked down once and constantly taking the shots from one of the badest punchers in boxing. After this fight I have to admit, that current heavyweight division doesn't need Stiverne because he doesn't and have never had a camp's mentality
According to himself at the press conference the day before, he felt great and was talking about what a good camp he had.