My heart tells me Fury will destroy Wilder simply because Fury is by far the better boxer. If Fury goes on an all out attack and tries to finish Wilder in less than 7 rounds as he claims he will do, then Wilder will stand no chance, but you can see Malik already drilling those Mayweather defense moves on Wilder so i think their camp will prepare for what is to come. Now whether they pull it off remains to be seen, cos like what Fury said in the recent presser, a boxer will normally revert back to habit very quickly once the pressure kicks in, and you don't suddenly change habits in a few months of training. Wilder will try to aim for that lethal KO punch, and Fury will have to be quick off the blocks and try to smash Wilder's face within 7 rounds, but if he fails, i think the extra weight-piling will eventually wear Fury down after the 6-7th round, and Wilder will then have his chance. Fury will then have to rely on his boxing skills to outbox a vengeful Wilder.
Well, that's just my analysis.