Ahh, tbh in not entirely too sure about that.
With Numbers still Lurking, Apoo and Hawkins still factors, and Fukurokuju existing, plus possbilities Oda just shows them fighting King and Queen but doesn't end them, same with some BM/Kaido skirmishes, I question if Oda can do it in 5 chapters.
I expect Queen and King to be the last things taken out before Big Mom and Kaido (and Orochi but that's separate)