it doesn't mean that but it will be unlikely , if he does that , Sanji , Jinbe and the others would help too.
what i expect for now that Zoro take's Marco's place , Marco go bring Luffy back , they come in time to save Yamato , Marco might help against Kaido or BM for a while. Marco is the support character of the arc. i don't expect him to have a fight where he defeats someone.
he helped reduce the enemies by knocking BM's ship down, helped by bringing Neko nd Izo in time, helped chopper and the alliance with the ice oni , helped Zoro go to the top , occupied King and Queen and prevent them from preventing Zoro from going to the top , and from harming the alliance , helped Chopper get an attack on Queen. his role is very important for the alliance and they would lose without having him. he will continue to be the support to the end.