https://screenrant.com/cobra-kai-season-5-daniel-chozen-terry-failure/

Daniel LaRusso is determined to defeat Cobra Kai, but his strategy heading into season 5 isn't likely to work, while Tory and Robby might be the key.

It wouldn't surprise me if "next-generation" strength from the students is what it will take. They are the ones taking the classes and doing the fighting, after all. There's a reason Mr. Miyagi in the first Karate Kid movie wanted Daniel to come to that "fight so I don't have to fight" revelation on his own.