In SBS 82, Oda talks about how much he likes old characters who are still strong. He is still hyping up for example Garp with backstories. Will he never show Garp, Rayleigh and Sengoku go all out?
All of them have somewhat retired, they don't do the daily business anymore. But they all still fight when they are needed. Rayleigh fought Kizaru and now threatened Blackbeard. Sengoku fought Jack. Rayleigh knows the True History, he wants Luffy to succeed. Garp wants to take responsibility for his family. When Luffy attacks Akainu, Dragon will probably be with him. He will fight his father. Sengoku will fight Rayleigh.
All of them have somewhat retired, they don't do the daily business anymore. But they all still fight when they are needed. Rayleigh fought Kizaru and now threatened Blackbeard. Sengoku fought Jack. Rayleigh knows the True History, he wants Luffy to succeed. Garp wants to take responsibility for his family. When Luffy attacks Akainu, Dragon will probably be with him. He will fight his father. Sengoku will fight Rayleigh.