Yeah, the Monster Trio is an important dynamic in the series and it never left, Oda even reiterated with the Pirate King and his Wings thing. Jimbei is great, but the idea of a new Monster Trio forming never held up since Oda never bothered to showcase that in the series (whether it be Yamato or Jimbei fans took it upon themselves to create that despite the Wings being introduced in Wano and now Gaban just reaffirms that). Bounty-wise, it's great for Jimbei, but in regards to facing Calamities, having important roles no one else can do arc to arc and being the most reliable members for Luffy, I don't see Oda distinguishing Jimbei from the rest of the crew to be honest. He's strong, has a large bounty, but it kinda ends there. Oda could try and highlight them as the top 3 Commanders more often, but there's only like 2 panels to go off so far. Franky in Egghead did pretty terrific, I don't think there's a Monster 5 or anything, Oda's not afraid to introduce new dynamics, but there are few on the level of the Monster Trio and I don't expect that to change.
I do hope Oda lets Jimbei take charge of the section of the crew he's with to make up for him being dealt with by Gunko and tied up, but the way Robin and Nami talked about him while Luffy, Zoro and Sanji were yet to arrive, I'm not sure.