Yeah, I really don't think the other Strawhats are meant to show up in this arc. At this point, it would require someone like Raleigh to have a teleportation fruit to go around and collect them up and bring them here.

And I don't see the point. They've already given Luffy a temporary crew for this battle.

Although if we're lucky, Luffy will keep one.

I noticed that Jimbei seems to be a badass helmsmen. That's like the one crew job that Luffy doesn't have an expert at. And who's better at piloting waterways than a fishman?