Your question is about a rematch held within 5 years of their initial fight, right? Ali will try the rope-a-dope again since it worked before but Foreman will know this time not to fall in that trap. Ali will not exchange punches with Foreman but do a lot of jabs while circling around. He will "float like a butterfly and sting like a bee". But doing that will not wear Foreman down, just one clean punch from him will likely drop Ali like a sack of potato. And Ali will be hit with some of Foreman's punches which will make him more cautious with his moves. This will be somewhat of a boring fight compared to the first with Foreman giving out the most telling blows. Foreman wins by split decision.