If Edwards still can get up over and over as he did in the last fight, the result may still be the same. Usman will be frustrated and gas out which is what the opportunity that Edwards looks for.
Edward will be confident entering this fight knowing he was the one who Knocked out Usman in their last encounter and it has not been so long ago. Edward believes that since their last fight has not been that long, that there will be nothing new to Usman's fighting style, he may be right and at the same time wrong too. Usman will not want to make the same mistakes that he made during their first fight where he allowed Edward to attack him with a kick to his head and neck, he has had a taste of what is possible if Edward is given the chance to, so he will be better prepared for this fight.
For Leon Edwards, it will be his biggest mistake to expect this fight to be the same as before. He has hinted about the advantage the home crowd will give him, but that may not just be enough. It is a chance for Usman to get his revenge on Edward, he will be prepared to take it.
Personally I want Usman to win, he is not used to defeats after not loosing for a very long time, if he looses again to the same person that ended his winning streak, it may be difficult for him to bounce back and return to the Nightmare that we know.