@Shift:
I may be passionate, but I’m still aiming to be objective. I ‘m not against it because I wouldn’t like it. I personally like Yamato, who I’ve said before ticks a lot of the boxes I was hoping for. I’d be happy to have him and Carrot on the crew if it actually seemed like he was being drawn that way, but I don’t believe he is, and I don’t think we’re having a joining free for all, either.
I don't believe Yamato is going to become a future crewmate either, but specifically your reply to my post didn't sound very objective to me, honestly. In response to my sugestion that Yamato could join the crew alongside Momo (since they're being tagged together), you brought up the reasoning that two more nakama besides Jimbe is not happening, that you're actively against it, which I think is much more subjective than anything else.
I'm not saying that your argument is invalid due to subjectivity, and it's a fair reason to base your own expectation on your instincts… but you shouldn't quickly dismiss as you did the possibility that Yamato and Momo could be developed as a pair of future crewmates.
The only reason I think more than one person joining here is possible at all is because it is Jinbe, who yes, has been built up over years and years and is finally paying off. He can hold up to a lot, including someone else sharing his spotlight. Oda could have had Jinbe join all the way back in Fishman Island. He could have had Jinbe join after Totto Land. But he chose to make Jinbe official now, in Wano. I don’t know why it had to be that way, but it is what it is. And as much as I wanted and expected him to be official a long time ago, he only just became so now.
If even two more people, much less five, joined right now all at once, that would seriously dilute what a special occasion it’s always been. We’re talking about the core group of characters we’re going to be following for the remainder of the series, the ones who will get the One Piece first. We can’t have everyone joining, or else joining wouldn’t be special. That’s not me being biased for or against anyone in particular, that’s just what I see making the most sense. I’m open to being wrong, but I think my point has merit.
But Jimbe is not joining together "right now all at once" with anybody else. Jimbe is a crewmember already. For example, let's compare him with Carrot, who we both believe could join and who has been together with the crew for more than a hundred chapters. Let's see: (1) Jimbe is in the big Strawhats panel in chapter 988, (2) Jimbe is officially treated as a complete Strawhat even in the most mundane moments now, (3) Jimbe is featured in colorspreads now, (4) Jimbe had many joining scenes in the past and (5) Jimbe is put as a crewmate in merchandising and promotion… while Carrot is not portrayed like that at all. The reason is simple. It's because one of them is a Strawhats already and the other is not. So if Carrot joins the crew at the end of Wano, she's not joining together with Jimbe. No, she's joining alone (or together with Yamato). For the same reason, Jimbe won't be sharing the spotlight with Carrot or anynbody else because his recruitment has already happened even if the toast was delayed.
As I said before, I think you're putting too much weight into the end-of-arc celebration as a big moment for Jimbe, as his ritual of officialization, which I think is not. It will be indeed a big moment for Carrot if she joins, or for Yamato, or for Momo, or for Tama... and for them it would be sharing the spotlight if more than one of them joined together (with the exception of Momo and Yamato for the reason of being a pair). But for Jimbe it's only a toast.
All in all, this celebration will be a huge end-of-super-saga celebration and will wrap up many different plot threads from the last 10 years, so it would not be surprising if Oda did an unprecedented amount of big moments without one diminishing the other.