Really depends on Usyk; if he can get through the first half of the fight and still has enough in the tank, he might get a late stoppage, otherwise it'll likely go to the decision.
Fury has backed himself with that extra weight to get things done early, or at least wear Usyk down so much, that he's not his usual self later in the fight. If he works the body hard enough (Usyk really doesn't like that), he may get an opening for an uppercut, which if connects flush, could see the fight end early, but I think that's less likely than either a TKO, or a late rally from Usyk if Fury has knackered himself out chasing the stoppage.